Scholars Portal
1928-2025
Preserved
2025-09-02
Preserved : 1 (1-2, 3, 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); 14 (, 1, 2); 15 (, 1 to 3); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 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, 2-3, 4); 36 (, 1 to 4); 37 (, 1 to 3); 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 3); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1, 2, 3-4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1 to 4); 62 (, 1 to 4); 63 (, 1 to 4); 64 (, 1 to 4); 65 (, 1 to 4); 66 (, 1 to 4); 67 (, 1 to 4); 68 (, 1 to 4); 69 (, 1 to 4); 70 (, 1 to 4); 71 (, 1 to 4); 72 (, 1 to 4); 73 (, 1 to 4); 74 (, 1 to 4); 75 (, 1 to 4); 76 (, 1 to 4); 77 (, 1 to 4); 78 (, 1 to 4); 79 (, 1 to 4); 80 (, 1 to 4); 81 (, 1 to 4); 82 (, 1 to 4); 83 (, 1_suppl, 2 to 4); 84 (, 1 to 4); 85 (, 1 to 4); 86 (, 1 to 4); 87 (, 1 to 4); 88 (, 1 to 4); 89 (, 1 to 4); 90 (, 2 to 4); 91 (, 1, 2); 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
Internet Archive
1975-2007
Preserved
2025-08-08
41 to 73
Portico
1938-1948
Preserved
2026-02-12
Preserved : 1938: 11(1-4), 1939: 12(1-4), 1948: 13(1), 1948: 14(1-2)
Portico
1949-2026
Preserved
2026-02-12
Preserved : 1949: 15(1-3), 1950: 16(1-4), 1951: 17(1-4), 1952: 18(1-4), 1953: 19(1-4), 1954: 20(1-4), 1955: 21(1-4), 1956: 22(1-4), 1957: 23(1-4), 1958: 24(1-4), 1959: 25(1-4), 1960: 26(1-4), 1961: 27(1-4), 1962: 28(1-4), 1963: 29(1-4), 1964: 30(1-4), 1965: 31(1-4), 1966: 32(1-4), 1967: 33(1-4), 1968: 34(1-4), 1969: 35(1-4), 1970: 36(1-4), 1971: 37(1-4), 1972: 38(1-4), 1973: 39(1-4), 1974: 40(1-4), 1975: 41(1-4), 1976: 42(1-4), 1977: 43(1-4), 1978: 44(1-4), 1979: 45(1-4), 1980: 46(1-4), 1981: 47(1-4), 1982: 48(1-4), 1983: 49(1-4), 1984: 50(1-4), 1985: 51(1-4), 1986: 52(1-4), 1987: 53(1-4), 1988: 54(1-4), 1989: 55(1-4), 1990: 56(1-4), 1991: 57(1-4), 1992: 58(1-4), 1993: 59(1-4), 1994: 60(1-4), 1995: 61(1-4), 1996: 62(1-4), 1997: 63(1-4), 1998: 64(1-4), 1999: 65(1-4), 2000: 66(1-4), 2001: 67(1-4), 2002: 68(1-4), 2003: 69(1-4), 2004: 70(1-4), 2005: 71(1-4), 2006: 72(1-4), 2007: 73(1-4), 2008: 74(1-4), 2009: 75(1-4), 2010: 76(1-4), 2011: 77(1-4), 2012: 78(1-4), 2013: 79(1-4), 2014: 80(1-4), 2015: 81(1-4), 2016: 82(1-4), 2017: 83(1, 1, S, 2-4), 2018: 84(1-4), 2019: 85(1-4), 2020: 86(1-4), 2021: 87(1-4), 2022: 88(1-4), 2023: 89(1-2, 4), 2024: 90(1-4), 2025: 91(1-4), 2026: 92(1)
CLOCKSS Archive
1957-2025
In Progress
2026-02-09
23 to 71, 82 to 91
LOCKSS Archive
1957-2025
In Progress
2026-02-09
23 to 68, 91
LOCKSS Archive
2003-2024
Preserved
2026-02-09
69 to 90
CLOCKSS Archive
2006-2015
Preserved
2026-02-09
72 to 81
Library of Congress
2010-2024
Preserved
2025-04-07
76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 4); 80 (1 to 4); 81 (1 to 4); 82 (1 to 4); 83 (1_suppl, 1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 4); 90 (1 to 4)
National Library of the Netherlands
1928-2019
Preserved
2024-12-15
Preserved : 1 (1-2, 3, 4); 2 (2-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-3); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1, 2, 4); 12 (1-4); 13 (1); 14 (2); 15 (1-3); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1, 2-3, 4); 36 (1-4); 37 (1-3); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (1-4); 43 (1-4); 44 (1-3); 45 (1-4); 46 (1-4); 47 (1-4); 48 (1, 2-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1-4); 54 (1-4); 55 (1-4); 56 (1-4); 57 (1-4); 58 (1-4); 59 (1-4); 60 (1-4); 61 (1-4); 62 (1-4); 63 (1-4); 64 (1-4); 65 (1-4); 66 (1-4); 67 (1-4); 68 (1-4); 69 (1-4); 70 (1-4); 71 (1-4); 72 (1-4); 73 (1-4); 74 (1-3); 75 (1-4); 76 (1-4); 77 (1-4); 78 (1-4); 79 (1-4); 80 (2-4); 81 (1, 2, 4); 82 (1-4); 83 (1-4); 84 (1-3); 85 (1-3)