Dyfyniad APA

Halsbury's laws of England,4th ed, Vol.30,Medicine,mental health,1980. Butterworths.

Dyfyniad Arddull Chicago

Halsbury's Laws of England,4th Ed, Vol.30,Medicine,mental Health,1980. London: Butterworths.

Dyfyniad MLA

Halsbury's Laws of England,4th Ed, Vol.30,Medicine,mental Health,1980. Butterworths.

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