APA-viite (7. p.)

WRIGGINS, W. H. (1973). Population, politics and the future of. Columbia U.P.

Chicago-viite (17. p.)

WRIGGINS, W. Howard. Population, Politics and the Future of. New York: Columbia U.P, 1973.

MLA-viite (9. p.)

WRIGGINS, W. Howard. Population, Politics and the Future of. Columbia U.P, 1973.