Dyfyniad APA

Cox, M. J. Families as systems. [article].

Dyfyniad Arddull Chicago

Cox, Martha J. Families as Systems. [article].

Dyfyniad MLA

Cox, Martha J. Families as Systems. [article].

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