Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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