1973
January January 1973; 43 (1): 1 - 60	February February 1973; 43 (2): 61 - 122	March March; 43 (3): 123 - 184
April April 1973; 43 (4): 185 - 245	May May; 43 (5): 247 - 308	June June 1973; 43 (6): 309 - 370
July July; 43 (7): 371 - 432	August August 1973; 43 (8): 433 - 494	September September; 43 (9): 495 - 556
October October; 43 (10): 557 - 626	November November; 43 (11): 627 - 696	December December 1973; 43 (12): 697 - 761