APA (7th ed.) Citation

Constantine, L. L., & Constantine, J. M. (1973). Group marriage: A study of contemporary multilateral marriage. Macmillan.

Chicago Style (17th ed.) Citation

Constantine, Larry L., and Joan M. Constantine. Group Marriage: A Study of Contemporary Multilateral Marriage. New York: Macmillan, 1973.

MLA (8th ed.) Citation

Constantine, Larry L., and Joan M. Constantine. Group Marriage: A Study of Contemporary Multilateral Marriage. Macmillan, 1973.