edited by Albert R. Roberts; Gilbert J. Greene; foreword by Barbara W. White. (2002). Social workers' desk reference. Oxford,New York: Oxford University Press.
Dyfyniad Arddull Chicagoedited by Albert R. Roberts; Gilbert J. Greene; foreword by Barbara W. White. Social Workers' Desk Reference. Oxford,New York: Oxford University Press, 2002.
Dyfyniad MLAedited by Albert R. Roberts; Gilbert J. Greene; foreword by Barbara W. White. Social Workers' Desk Reference. Oxford,New York: Oxford University Press, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.