1964
January January; 24 (1): 1 - 138	February February; 24 (2): 139 - 230	March March; 24 (3): 231 - 304
April April; 24 (4): 305 - 384	May May; 24 (5): 385 - 480	June June; 24 (6): 481 - 566
July July; 24 (7): 567 - 684	August August; 24 (8): 685 - 820	September September; 24 (9): 821 - 946
October October; 24 (10): 947 - 1090	November November; 24 (11): 1091 - 1230	December December; 24 (12): 1231 - 1352