1970-1979
1979
Volume 43, No. 7, Yearbook 1979
Volume 43, No. 6, December 1979
Volume 43, No. 5, October 1979
Volume 43, No. 1, February 1979
1978
Volume 42, No. 3, November 1978
1977
Volume 41, No. 3, November 1977
1976
Volume 40, No. 3, November 1976
Volume 40, No. 1, February 1976
1975
Volume 39, No. 4, November 1975
Volume 39, No. 3, June/July 1975
Volume 39, No. 1, February 1975
1974
Volume 38, No. 6, December 1974
Volume 38, No. 1, February 1974
1973
Volume 37, No. 6, December 1973
Volume 37, No. 5, September 1973
Volume 37, No. 1, February 1973
1972
Volume 36, No. 6, December 1972
Volume 36, No. 5, October 1972
Volume 36, No. 1, February 1972
1971
Volume 35, No. 6, December 1971
Volume 35, No. 5, October 1971
Volume 35, No. 1, February 1971
1970
Volume 34, No. 6, December 1970