Davis, L. N., & McCallon, E. (1974). Planning, conducting, evaluating workshops: A practitioner's guide to adult education. Learning Concepts.
Lua i Stíl Chicago (17ú heag.)Davis, Larry Nolan, agus Earl McCallon. Planning, Conducting, Evaluating Workshops: A Practitioner's Guide to Adult Education. Austin, Tex.: Learning Concepts, 1974.
Lua MLA (8ú heag.)Davis, Larry Nolan, agus Earl McCallon. Planning, Conducting, Evaluating Workshops: A Practitioner's Guide to Adult Education. Learning Concepts, 1974.
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