1987
January Vol 79, Num 1: 1 - 172	February Vol 79, Num 2: 173 - 317	March Vol 79, Num 3: 321 - 488
April Vol 79, Num 4: 489 - 656; A36 - A105	May Vol 79, Num 5: 663 - 842	June Vol 79, Num 6: 843 - 1057
July Vol 80, Num 1: 1 - 158	August Vol 80, Num 2: 159 - 308	September Vol 80, Num 3: 309 - 462
October Vol 80, Num 4: 465 - 601	November Vol 80, Num 5: 605 - 816	December Vol 80, Num 6: 817 - 973