PLAYMATE: Ursula Buchfellner COVER: Burt Reynolds with Gig Gangel PICTORIALS: Bunnies of '79 including Kim Bateman, Patti Dugan, Dorothy Stratton, and others; pictorial on the release of Francis F. Coppola's "Apocalypse Now", with Playmates CYNDI WOOD (PMOY - 1973), LINDA BEATTY CARPENTER and COLLEEN CAMP. INTERVIEW: Burt Reynolds FEATURES: 1st installment (of 3) of "Executioner's Song", by Norman Mailer, on the life and death of serial killer Gary Gilmore; fiction by Irwin Shaw, "Top of the Hill" (part 3 of 3); article on Alabama coach Bear Bryant by Richard Price; Shel Silverstein on dieting; Playboy's Funnies PAGES: 270