Hugo Award Books: 1976 to 1967
1976 : The Forever War by Joe Haldeman
1975 : The Dispossessed: An Ambiguous Utopia by Ursula K. Le Guin
1974 : Rendezvous with Rama by Arthur C. Clarke
1973 : The Gods Themselves by Isaac Asimov
1972 : To Your Scattered Bodies Go by Philip Jose Farmer
1971 : Ringworld by Larry Niven
1970 : The Left Hand of Darkness by Ursula K. Le Guin
1969 : Stand on Zanzibar by John Brunner
1968 : Lord of Light by Roger Zelazny
1967 : The Moon Is A Harsh Mistress by Robert A. Heinlein