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Internet Archive
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Preserved
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2025-08-08
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1 to 48
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1-2, 3-4); 17 (1-2, 3-4); 18 (1 to 4); 19 (1-4); 20; 21; 22; 23; 24; 25; 26; 27 (3-4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 3); 48 (2 to 4); 49 (1 to 5); 50 (1 to 5); 51 (1 to 5); 52 (1 to 5); 53 (1 to 5); 54 (1, 2-3, 4, 5); 55 (1, 2-3, 4, 5); 56 (1, 2-3, 4, 5); 57 (1, 2-3, 4, 5); 58 (1, 2-3, 4, 5); 59 (1 to 5); 60 (1, 2)
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Portico
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Preserved
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2026-05-21
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Preserved : 1966: 1(1-4), 1967: 2(1-4), 1968: 3(1-4), 1969: 4(1-4), 1970: 5(1-4), 1971: 6(1-4), 1972: 7(1-4), 1973: 8(1-4), 1974: 9(1-4), 1975: 10(1-4), 1976: 11(1-4), 1977: 12(1-4), 1978: 13(1-4), 1979: 14(1-4), 1980: 15(1-4), 1981: 16(1-4), 1982: 17(1-4), 1983: 18(1-4), 1984: 19(1-4), 1986: 20(1-4), 1987: 21(1-4), 1988: 22(1-4), 1989: 23(1-4), 1990: 24(1-4), 1991: 25(1-4), 1992: 26(1-4), 1993: 27(1-4), 1994: 28(1-4), 1995: 29(1-4), 1996: 30(1-4), 1997: 31(1-4), 1998: 32(1-4), 1999: 33(1-4), 2000: 34(1-4), 2001: 35(1-4), 2002: 36(1-4), 2003: 37(1-4), 2004: 38(1-4), 2005: 39(1-4), 2006: 40(1-4), 2007: 41(1-4), 2008: 42(1-4), 2009: 43(1-4), 2010: 44(1-4), 2011: 45(1-4), 2012: 46(1-4), 2013: 47(1-4), 2014: 48(1-4), 2015: 49(1-5), 2016: 50(1-5), 2017: 51(1-5), 2018: 52(1-5), 2019: 53(1-5), 2020: 54(1-5), 2021: 55(1-5), 2022: 56(1-5), 2023: 57(1-5), 2024: 58(1-5), 2025: 59(1-5), 2026: 60(1-2)
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CLOCKSS Archive
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In Progress
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2026-05-18
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27 to 38, 40, 51 to 60
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LOCKSS Archive
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In Progress
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2026-05-18
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27 to 36, 60
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LOCKSS Archive
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Preserved
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2026-05-18
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37 to 59
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CLOCKSS Archive
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Preserved
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2026-05-18
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39, 41 to 50
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Library of Congress
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Preserved
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2025-04-07
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44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 5); 50 (1 to 5); 51 (1 to 5); 52 (2 to 5); 53 (2 to 5); 54 (1, 2-3, 4, 5); 55 (1, 2-3, 4, 5); 56 (1, 2-3, 4, 5); 57 (1, 2-3, 4, 5); 58 (1, 2-3, 4, 5)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1, 2, 4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-2, 3-4); 17 (1-2, 3-4); 18 (1-4); 19 (1-4); 20; 21; 22; 23; 24; 25; 26; 27 (3-4); 28 (1, 2, 4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (1, 3, 4); 43 (2-4); 44 (1-4); 45 (1-3); 46 (1, 3, 4); 47 (1, 3, 4); 48 (1-4); 49 (1-5); 50 (2-5); 51 (1-5); 52 (1-5); 53 (1-5)
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British Library
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Preserved
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2019-09-18
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Preserved : 48 (1 to 4), 49 (1 to 5), 50 (1 to 5), 51 (1 to 5), 52 (1 to 4)
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