Dyfyniad APA

Journal of Gerontological Nursing. Cambridge University Press.

Dyfyniad Arddull Chicago

Journal of Gerontological Nursing. Cambridge University Press.

Dyfyniad MLA

Journal of Gerontological Nursing. Cambridge University Press.

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