1971
January January; 3 (1): 1 - 191	February February; 3 (2): 193 - 364	March March; 3 (3): 365 - 506
April April; 3 (4): 507 - 635	May May; 3 (5): 637 - 713	June June; 3 (6): 715 - 856
July July; 4 (1): 1 - 87	August August; 4 (2): 89 - 175	September September; 4 (3): 177 - 321
October October; 4 (4): 323 - 518	November November; 4 (5): 519 - 662	December December; 4 (6): 663 - 783