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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1); 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37 (2, 3); 38 (1 to 3); 39 (1 to 3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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19 to 34
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Portico
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Preserved
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2026-04-09
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Preserved : 1971: 1(1), 1972: 2(1), 1973: 3(1), 1974: 4(1), 1975: 5(1), 1976: 6(1), 1977: 7(1), 1978: 8(1), 1979: 9(1), 1980: 10(1), 1981: 11(1), 1982: 12(1), 1983: 13(1), 1984: 14(1), 1985: 15(1), 1986: 16(1), 1987: 17(1), 1988: 18(1), 1989: 19(1), 1990: 20(1), 1991: 21(1), 1992: 22(1), 1993: 23(1), 1994: 24(1), 1995: 25(1), 1996: 26(1), 1997: 27(1), 1998: 28(1), 1999: 29(1), 2000: 30(1), 2001: 31(1), 2002: 32(1), 2003: 33(1), 2004: 34(1), 2005: 35(1), 2006: 36(1), 2007: 37(1-3), 2008: 38(1-3), 2009: 39(1-3), 2010: 40(1-3), 2011: 41(1-3), 2012: 42(1-3), 2013: 43(1-3), 2014: 44(1-3), 2015: 45(1-3), 2016: 46(1-3), 2017: 47(1-3), 2018: 48(1-3), 2019: 49(1-3), 2020: 50(1-3), 2021: 51(1-3), 2022: 52(1-3), 2023: 53(1-3), 2024: 54(1-3), 2025: 55(1-3), 2026: 56(1)
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Library of Congress
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Preserved
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2025-04-07
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50 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1, 3); 54 (1 to 3)
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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; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37 (2, 3); 38 (1-3); 39 (1-3); 40 (1-3); 41 (1-3)
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