1980
January January; 40 (1): 1 - 192	February February; 40 (2): 203 - 494	March March; 40 (3): 497 - 965
April April; 40 (4): 967 - 1365	May May; 40 (5): 1367 - 1767	June June; 40 (6): 1769 - 2081
July July; 40 (7): 2083 - 2631	August August; 40 (8 Part 1 ): 2633 - 2951 August; 40 (8 Part 2 ): 2957 - 3086	September September; 40 (9): 3089 - 3411
October October; 40 (10): 3413 - 3861	November November; 40 (11): 3863 - 4331	December December; 40 (12): 4335 - 4836