1987
January/February 1987; 49 (1): 3 - 98	March/April 1987; 49 (2): 109 - 196	May/June 1987; 49 (3): 217 - 316
July/August 1987; 49 (4): 325 - 430	September/October 1987; 49 (5): 435 - 541	November/December 1987; 49 (6): 545 - 634