Becker, G. S. (1991). A treatise on the family (Enl. ed.). Harvard University Press.
Chicago Style aipamenaBecker, Gary Stanley. A Treatise on the Family. Enl. ed. Cambridge, Mass: Harvard University Press, 1991.
MLA aipamenaBecker, Gary Stanley. A Treatise on the Family. Enl. ed. Harvard University Press, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.