1977
January January; 50 (589): 2 - 77	February February; 50 (590): 81 - 155	March March; 50 (591): 161 - 236
April April; 50 (592): 241 - 296	May May; 50 (593): 299 - 374	June June; 50 (594): 379 - 450
July July; 50 (595): 459 - 529	August August; 50 (596): 539 - 606	September September; 50 (597): 610 - 682
October October; 50 (598): 687 - 766	November November; 50 (599): 769 - 846	December December; 50 (600): 849 - 925