1969
January January 1; 24 (1): 1 - 135	February February 1; 24 (2): 137 - 302	March March 1; 24 (3): 303 - 492
April April 1; 24 (4): 493 - 587	May May 1; 24 (5): 589 - 756	June June 1; 24 (6): 757 - 985
July July 1; 25 (1): 1 - 95	August August 1; 25 (2): 99 - 235	September September 1; 25 (3): 237 - 364
October October 1; 25 (4): 365 - 508	November November 1; 25 (5): 509 - 636	December December 1; 25 (6): 637 - 811