1980
January January; 73 (1): 1 - 79	February February; 73 (2): 87 - 154	March March; 73 (3): 159 - 220
April April; 73 (4): 227 - 306	May May; 73 (5): 315 - 394	June June; 73 (6): 401 - 463
July July; 73 (7): 471 - 529	August August; 73 (8): 541 - 599	September September; 73 (9): 607 - 682
October October; 73 (10): 695 - 757	November November; 73 (11): 765 - 831	December December; 73 (12): 837 - 895