Homan, M. S. (1999). Promoting Community Change. Brooks/Cole Publishing Company.
Dyfyniad Arddull ChicagoHoman, Mark S. Promoting Community Change. Brooks/Cole Publishing Company, 1999.
Dyfyniad MLAHoman, Mark S. Promoting Community Change. Brooks/Cole Publishing Company, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.