1969
January January; 17 (1): 1 - 192	February February; 17 (2): 193 - 337	March March; 17 (3): 339 - 490
April April; 17 (4): 491 - 652	May May; 17 (5): 653 - 777	June June; 17 (6): 779 - 941
July July; 18 (1): 1 - 136	August August; 18 (2): 137 - 297	September September; 18 (3): 299 - 532
October October; 18 (4): 533 - 701	November November; 18 (5): 703 - 960	December December; 18 (6): 961 - 1100