1975
January January ; 22 (1) : 1a - 122	March March ; 22 (2) : 123 - 252	May May ; 22 (3) : 253 - 386
July July ; 22 (4) : 387 - 538	September September ; 22 (5) : 539 - 636	November November ; 22 (6) : 637 - 760