1973
January January 1973; 12 (1): 1 - 60	February February 1973; 12 (2): 16B - 124	March March 1973; 12 (3): 125 - 173
April April 1973; 12 (4): 14A - 188	May May 1973; 12 (5): 257 - 322	June June 1973; 12 (6): 257 - 320
August August 1973; 12 (8): 383 - 454	September September 1973; 12 (9): 455 - 510	October October 1973; 12 (10): 16B - 626
November November 1973; 12 (11): 7A - 625	December December 1973; 12 (12): 17A - 716