1980
January January 1980; 31 (1): 1 - 73	February February 1980; 31 (2): 75 - 145	March March 1980; 31 (3): 147 - 219
April April 1980; 31 (4): 221 - 292	May May 1980; 31 (5): 293 - 365	June June 1980; 31 (6): 365 - 435
July July 1980; 31 (7): 437 - 507	August August 1980; 31 (8): 509 - 580	September September 1980; 31 (9): 581 - 653
October October 1980; 31 (10): 655 - 728	November November 1980; 31 (11): 729 - 799	December December 1980; 31 (12): 801 - 856