Dyfyniad APA

(2004). American Family Physician. Kansas: American academy of Family Physicians.

Dyfyniad Arddull Chicago

American Family Physician. Kansas: American academy of Family Physicians, 2004.

Dyfyniad MLA

American Family Physician. Kansas: American academy of Family Physicians, 2004.

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