Cox, H. (1995). Annual editions: Aging. Dushkin.
Dyfyniad Arddull ChicagoCox, Harold. Annual Editions: Aging. Sluice Dock: Dushkin, 1995.
Dyfyniad MLACox, Harold. Annual Editions: Aging. Dushkin, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.