1980
January January; 34 (1): 1 - 36	February February; 34 (2): 37 - 72	March March; 34 (3): 73 - 108
April April; 34 (4): 109 - 143	May May; 34 (5): 145 - 180	June June; 34 (6): 181 - 214
July July; 35 (1): 1 - 33	August August; 35 (2): 37 - 69	September September; 35 (3): 73 - 107
October October; 35 (4): 109 - 142	November November; 35 (5): 145 - 179	December December; 35 (6): 183 - 208