APA (7th ed.) Zitazioa

Spengler, J. J. (1968). France faces depopulation. Greenwood.

Chicago Style (17th ed.) Zitazioa

Spengler, Joseph J. France Faces Depopulation. New York: Greenwood, 1968.

MLA (9th ed.) Zitazioa

Spengler, Joseph J. France Faces Depopulation. Greenwood, 1968.