1972
January January; 66 (1): 1 - 192	February February; 66 (2): 193 - 378	March March; 66 (3): 379 - 592
April April; 67 (1): 1 - 214	May May; 67 (2): 215 - 411	June June; 67 (3): 417 - 616
July July; 68 (1): 1 - 206	August August; 68 (2): 209 - 444	September September; 68 (3): 447 - 656
October October; 69 (1): 3 - 212	November November; 69 (2): 213 - 372	December December; 69 (3): 373 - 540