APA (7th ed.) Citation
Smith, H. (1991). <The> World's Religions (50th Anniversary Edition.). HarperOne.
Chicago Style (17th ed.) Citation
Smith, Huston. <The> World's Religions. 50th Anniversary Edition. New York: HarperOne, 1991.
MLA (9th ed.) Citation
Smith, Huston. <The> World's Religions. 50th Anniversary Edition. HarperOne, 1991.
Warning: These citations may not always be 100% accurate.