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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 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 3); 6 (1 to 3); 7 (1 to 3); 8 (1 to 3); 9 (1 to 3); 10 (1 to 3); 11 (1 to 3); 12 (1 to 3); 13 (1 to 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1 to 3); 18 (1 to 3); 19 (1 to 3); 20 (1 to 3); 21 (1 to 3); 22 (1 to 3); 23 (1 to 3); 24 (1 to 3); 25 (1 to 3); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (1 to 3); 30 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 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); 50 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 5); 62 (1 to 5); 63 (1 to 5); 64 (1 to 5); 65 (1 to 5); 66 (1-2, 3 to 5); 67 (1, 3 to 5); 68 (1 to 5); 69 (1 to 6); 70 (1 to 6); 71 (1 to 6); 72 (1 to 6); 73 (1 to 3, 5, 6); 74 (1 to 6); 75 (3 to 6); 76 (1, 2, 3-4, 5, 6); 77 (1 to 3, 5, 6); 78 (1 to 6); 79 (1 to 6); 80 (1 to 5); 81 (1 to 4); 82 (1 to 6); 83 (1 to 6); 84 (1 to 3, 5, 6); 85 (1 to 6); 86 (1 to 6); 87 (1 to 6); 88 (1 to 6); 89 (1 to 6); 90 (1 to 6); 91 (1 to 5)
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Internet Archive
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Preserved
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2025-08-08
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1 to 70
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Portico
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Preserved
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2026-04-16
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Preserved : 1967: 1(1-4), 1968: 2(1-4), 1969: 3(1-4), 1970: 4(1-4), 1971: 5(1-3), 1971: 6(1-3), 1972: 7(1-3), 1972: 8(1-3), 1973: 9(1-3), 1973: 10(1-3), 1974: 11(1-3), 1974: 12(1-3), 1975: 13(1-3), 1975: 14(1-3), 1976: 15(1-3), 1976: 16(1-3), 1977: 17(1-3), 1977: 18(1-3), 1978: 19(1-3), 1978: 20(1-3), 1979: 21(1-3), 1979: 22(1-3), 1980: 23(1-3), 1980: 24(1-3), 1981: 25(1-3), 1981: 26(1-3), 1982: 27(1-3), 1982: 28(1-3), 1983: 29(1-3), 1983: 30(1-3), 1984: 31(1-3), 1984: 32(1-3), 1985: 33(1-3), 1985: 34(1-3), 1986: 35(1-3), 1986: 36(1-3), 1987: 37(1-3), 1987: 38(1-3), 1988: 39(1-3), 1988: 40(1-3), 1989: 41(1-3), 1989: 42(1-3), 1990: 43(1-3), 1990: 44(1-3), 1991: 45(1-3), 1991: 46(1-3), 1992: 47(1-3), 1992: 48(1-3), 1993: 49(1-3), 1993: 50(1-3), 1994: 51(1-3), 1994: 52(1-3), 1995: 53(1-3), 1995: 54(1-3), 1996: 55(1-3), 1996: 56(1-3)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 57, 59 to 65, 68, 69, 71, 73 to 92
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Portico
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Preserved
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2026-04-16
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Preserved : 2007: 73(5-6), 2008: 74(1-6), 2009: 75(1-6), 2010: 76(1-6), 2010/2011: 77(1-6), 2011/2012: 78(1-6), 2012/2013: 79(1-6), 2014: 80(1-6), 2014/2015: 81(1-6), 2016: 82(1-6), 2017: 83(1-6), 2018: 84(1-6), 2019: 85(1-6), 2020: 86(1-6), 2021: 87(1-6), 2022: 88(1-6), 2023: 89(1-6), 2024: 90(1-6), 2025/2026: 91(1-6), 2026: 92(1-2)
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Library of Congress
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Preserved
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2025-04-07
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76 (1 to 3-4, 5, 6); 77 (1 to 6); 78 (1 to 6); 79 (1 to 6); 80 (1 to 6); 81 (1 to 6); 82 (1 to 6); 83 (1, 2, 4 to 6); 84 (1 to 6); 85 (2 to 6); 86 (1 to 6); 87 (1 to 6); 88 (1 to 6); 89 (1 to 6); 90 (1 to 6); 91 (1)
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