1977
January January; 11 (1): 1 - 178	February February; 11 (2): 179 - 372	March March; 11 (3): 373 - 576
April April; 11 (4): 577 - 771	May May; 11 (5): 773 - 922	June June; 11 (6): 925 - 1089
July July; 12 (1): 1 - 130	August August; 12 (2): 131 - 300	September September; 12 (3): 301 - 447
October October; 12 (4): 449 - 557	November November; 12 (5): 559 - 647	December December; 12 (6): 649 - 751