Issue #639 Jul 25, 1987 Issue #640 Aug 01, 1987 Issue #641 Aug 08, 1987 Issue #642 Aug 15, 1987 Issue #643 Aug 22, 1987 Issue #644 Aug 29, 1987 Issue #645 Sep 05, 1987 Issue #646 Sep 12, 1987 Issue #647 Sep 19, 1987 Issue #648 Sep 26, 1987 Issue #649 Oct 03, 1987 Issue #650 Oct 10, 1987 Issue #651 Oct 17, 1987 Issue #652 Oct 24, 1987 Issue #653 Oct 31, 1987 Issue #654 Nov 07, 1987 Issue #655 Nov 14, 1987 Issue #656 Nov 21, 1987 Issue #657 Nov 28, 1987 Issue #658 Dec 05, 1987