1977
January Vol 59, Num 1: 13 - 146	February Vol 59, Num 2: 147 - 314	March Vol 59, Num 3: 315 - 488
April Vol 59, Num 4: 489 - 646	May Vol 59, Num 5: 647 - 796	June Vol 59, Num 6: 821 - 1065
July Vol 60, Num 1: 1 - 134	August Vol 60, Num 2: 135 - 262	September Vol 60, Num 3: 263 - 404
October Vol 60, Num 4: 405 - 654	November Vol 60, Num 5: 655 - 791	December Vol 60, Num 6: 797 - 940