APA (7th ed.) Zitazioa

Ermisch, J. F. (1991). Lone parenthood: An economic anlysis. Cambridge.

Chicago Style (17th ed.) Zitazioa

Ermisch, John F. Lone Parenthood: An Economic Anlysis. New York: Cambridge, 1991.

MLA (9th ed.) Zitazioa

Ermisch, John F. Lone Parenthood: An Economic Anlysis. Cambridge, 1991.