1961
January January 1; 9 (1): 1 - 224	March March 1; 9 (2): 225 - 545	May May 1; 9 (3): 489 - 935
July July 1; 9 (4): 807 - 969	September September 1; 9 (5): 971 - 1132	November November 1; 9 (6): 1133 - 1398