1975
January January 1975; 4 (1): 3 - 22	February February 1975; 4 (2): 3 - 24	March March 1975; 4 (3): 2 - 26
April April 1975; 4 (4): 3 - 24	May May 1975; 4 (5): 1 - C-8	June June 1975; 4 (6): 1 - 24
July July-August 1975; 4 (7): 1 - 24	September September 1975; 4 (8): 1 - 20	October October 1975; 4 (9): 3 - 36
November November 1975; 4 (10): 2 - 30	December December 1975; 4 (11): 1 - 21