Davis, L. N., & McCallon, E. (1974). Planning, conducting, evaluating workshops: A practitioner's guide to adult education. Learning Concepts.
Dyfyniad Arddull ChicagoDavis, Larry Nolan, and Earl McCallon. Planning, Conducting, Evaluating Workshops: A Practitioner's Guide to Adult Education. Austin, Tex.: Learning Concepts, 1974.
Dyfyniad MLADavis, Larry Nolan, and Earl McCallon. Planning, Conducting, Evaluating Workshops: A Practitioner's Guide to Adult Education. Learning Concepts, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.