1975
January January; 40 (1): 1 - 171	February February; 40 (2): 177 - 350	March March; 40 (3): 355 - 540
April April; 40 (4): 545 - 749	May May; 40 (5): 755 - 916	June June; 40 (6): 935 - 1127
July July; 41 (1): 1 - 202	August August; 41 (2): 215 - 425	September September; 41 (3): 431 - 643
October October; 41 (4): 649 - 804	November November; 41 (5): 809 - 991	December December; 41 (6): 999 - 1180