Ryan, W. C., & Tyler, R. W. (1939). Summer workshops in secondary education: An experiment in the in-service training of teachers and other educational workers. Progressive Education Association.
Chicago Style (17th ed.) CitationRyan, W. Carson, and Ralph W. Tyler. Summer Workshops in Secondary Education: An Experiment in the In-service Training of Teachers and Other Educational Workers. New York City: Progressive Education Association, 1939.
MLA (9th ed.) CitationRyan, W. Carson, and Ralph W. Tyler. Summer Workshops in Secondary Education: An Experiment in the In-service Training of Teachers and Other Educational Workers. Progressive Education Association, 1939.
Warning: These citations may not always be 100% accurate.