1970
January/February 1970; 32 (1): 1 - 112	March/April 1970; 32 (2): 113 - 224	May/June 1970; 32 (3): 225 - 336
July/August 1970; 32 (4): 337 - 448	September/October 1970; 32 (5): 449 - 560	November/December 1970; 32 (6): 561 - 666