APA (7th ed.) Zitazioa

ebrary, Inc, & Francis, R. G. (1958). The population ahead. University of Minnesota Press.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, eta Roy G. Francis. The Population Ahead. Minneapolis: University of Minnesota Press, 1958.

MLA (9th ed.) Zitazioa

ebrary, Inc, eta Roy G. Francis. The Population Ahead. University of Minnesota Press, 1958.