1969
February February 1969 18 (1): 1 - 182	March March 1969 18 (2): 183 - 381	April April 1969 18 (3): 383 - 552
June June 1969 19 (1): 3 - 214	July July 1969 19 (2): 215 - 392	August August 1969 19 (3): 393 - 598
October October 1969 20 (1): 1 - 192	November November 1969 20 (2): 193 - 366	December December 1969 20 (3): 369 - 553