Hill, M. J. 1. (1997). Understanding social policy (5th ed.). Oxford, UK ; Malden, Mass.: Blackwell.
Dyfyniad Arddull ChicagoHill, Michael J. 1937-. Understanding Social Policy. 5th ed. Oxford, UK ; Malden, Mass.: Blackwell, 1997.
Dyfyniad MLAHill, Michael J. 1937-. Understanding Social Policy. 5th ed. Oxford, UK ; Malden, Mass.: Blackwell, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.