vol. 43 (1935) - vol. 47 (1939) ; vol. 48 (1940) ; vol. 50 (1945) - vol. 51 (1946) ; vol. 61 no. 1 (1956) - vol. 78 no. 3 (1973) ; vol. 48 no. 4 (1973) - vol. 51 no. 1 (1976) ; vol. 51 no. 3 (1976) - vol. 53 no. 5 (1978) ; vol. 54 no. 1 (1979) - no. 2 ; vol. 54 no. 4 (1979) - no. 6 ; vol. 55 no. 1 (1980) - vol. 61 no. 4 (1986) ; vol. 61 no. 6 (1986) - vol. 69 no. 4 (1994) ; vol. 69 no. 6 (1994) ; vol. 70 no. 1 (1995) - vol. 71 no. 4 (1996) ; vol. 72 no. 1 (1997) - vol. 73 no. 4 (1998) ; vol. 73 no. 6 (1998) ; vol. 78 no. 4 (2003) - vol. 81 no. 5 (2006); Tables, index: (1805) - (1940)

M/75% R : 1935-1958; C/R : 1959-1965; C/50%R : 1966-1973; C/NR : 1973-1998; B/NR : 2003-2006