1972
January/February 1972; 34 (1): 1 - 96	March/April 1972; 34 (2): 98 - 192	May/June 1972; 34 (3): 193 - 288
July/August 1972; 34 (4): 289 - 384	September/October 1972; 34 (5): 385 - 480	November/December 1972; 34 (6): 481 - 570