Dyfyniad APA

Williamson, R. C. (1966). Marriage and family relations. Wiley.

Dyfyniad Arddull Chicago

Williamson, Robert Clifford. Marriage and Family Relations. New York: Wiley, 1966.

Dyfyniad MLA

Williamson, Robert Clifford. Marriage and Family Relations. Wiley, 1966.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.