1972
January January; 23 (1): 1 - 202	February February; 23 (2): 203 - 435	March March; 23 (3): 437 - 674
April April; 23 (4): 675 - 839	May May; 23 (5): 841 - 1036	June June; 23 (6): 1037 - 1174
July July; 24 (1): 1 - 163	August August; 24 (2): 165 - 297	September September; 24 (3): 299 - 524
October October; 24 (4): 525 - 673	November November; 24 (5): 675 - 851	December December; 24 (6): 853 - 1013