1964
January January ; 11 (1) : 1 - 111	March March ; 11 (2) : 113 - 240	May May ; 11 (3) : 241 - 334
July July ; 11 (4) : 335 - 452	September September ; 11 (5) : 453 - 558	November November ; 11 (6) : 557 - 650