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Internet Archive
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Preserved
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2025-08-08
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1 to 85
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Portico
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Preserved
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2026-02-12
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Preserved : 1970: 41(1-12), 1971: 42(1-12), 1972: 43(1-12), 1973: 44(1-12), 1974: 45(1-4, 5, Part 1, 5, Part 2, 6-7, 8, Part 1, 8, Part 2, 9-12), 1975: 46(1-12), 1976: 47(1-12), 1977: 48(1-12), 1978: 49(1-12), 1979: 50(1-12), 1980: 51(1-12), 1981: 52(1-12), 1982: 53(1-12), 1983: 54(1-12), 1984: 55(1-12), 1985: 56(1-12), 1986: 57(1-12), 1987: 58(1-12), 1988: 59(1-12), 1989: 60(1-12), 1990: 61(1-12), 1991: 62(1-12), 1992: 63(1-12), 1993: 64(1-12), 1994: 65(1-12), 1995: 66(1-12), 1996: 67(1-12), 1997: 68(1-12), 1998: 69(1-12), 1999: 70(1-12), 2000: 71(1-12), 2001: 72(1-12), 2002: 73(1-12), 2003: 74(1-12), 2004: 75(1-12), 2005: 76(1-12), 2006: 77(1-12), 2007: 78(1-12), 2008: 79(1-12), 2009: 80(1-12), 2010: 81(1-12), 2011: 82(1-12), 2012: 83(1-12), 2013: 84(1-12), 2014: 85(1-12), 2015: 86(1-12), 2016: 87(1-12), 2017: 88(1-12), 2018: 89(1, S1, 2-12), 2019: 90(1-12), 2020: 91(1, S1, 2-12), 2021: 92(1-12), 2022: 93(1-12), 2023: 94(1-12), 2024: 95(1-12), 2025: 96(1-12)
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CLOCKSS Archive
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Preserved
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2026-02-09
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2 to 10, 12 to 96
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Portico
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Preserved
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2026-02-12
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Preserved : 1969: 40(1-12)
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Portico
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Preserved
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2026-02-12
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Preserved : 1931: 2(1-2), 1932: 3(1-2), 1933: 4(1-2), 1934: 5(1-2), 1935: 6(1-2), 1936: 7(1-2), 1937: 8(1-2), 1938: 9(1-2), 1939: 10(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1941: 12(1-2), 1942: 13(1-2), 1943: 14(1, S1, 2, S2), 1944: 15(1-2), 1945: 16(1-4), 1946: 17(1-4), 1947: 18(1-4), 1948: 19(1-4), 1949: 20(1-4), 1950: 21(1-4), 1951: 22(1-4), 1952: 23(1, 3-4), 1953: 24(1-4), 1954: 25(1-4), 1955: 26(1-4), 1956: 27(1-4), 1957: 28(1-4), 1958: 29(1-4), 1959: 30(1-4), 1960: 31(1-5), 1961: 32(1-4), 1962: 33(1-4), 1963: 34(1-6), 1964: 35(1-6), 1965: 36(1-6), 1966: 37(1-6), 1967: 38(1-6, 6, Part 1, 6, Part 2), 1968: 39(1-6)
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