1981
January January; 36 (1): 1 - 36	February February; 36 (2): 37 - 71	March March; 36 (3): 73 - 108
April April; 36 (4): 109 - 142	May May; 36 (5): 145 - 178	June June; 36 (6): 181 - 216
July July; 37 (1): 1 - 34	August August; 37 (2): 37 - 71	September September; 37 (3): 73 - 108
October October; 37 (4): 109 - 143	November November; 37 (5): 145 - 178	December December; 37 (6): 179 - 206