Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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