• Volume 7, No.4, April 1979
• Volume 7, No.3, August 1978
• Volume 7, No.2, February 1978
• Volume 7, No.1, August 1977
• Volume 6, No.8, February 1977
• Volume 6, No.7, August 1976
• Volume 6, No.6, February 1976
• Volume 6, No.5, November 1975
• Volume 6, No.4, August 1975
• Volume 6, No.3, May 1975
• Volume 6, No.2, February 1975
• Volume 6, No.1, November 1974
• Volume 5, No.8, August 1974
• Volume 5, No.7, May 1974
• Volume 5, No.6, February 1974
• Volume 5, No.5, November 1973
• Volume 5, No.4, August 1973
• Volume 5, No.3, May 1973
• Volume 5, No.2, February 1973
• Volume 5, No.1, November 1972
• Volume 4, No.8, August 1972
• Volume 4, No.7, May 1972
• Volume 4, No.6, February 1972
• Volume 4, No.5, November 1971
• Volume 4, No.4, May 1971