Collings, E. (1927). School supervision in theory and practice. Thomas Y. Crowell company.
Chicago Style (17th ed.) CitationCollings, Ellsworth. School Supervision in Theory and Practice. New York: Thomas Y. Crowell company, 1927.
MLA (8th ed.) CitationCollings, Ellsworth. School Supervision in Theory and Practice. Thomas Y. Crowell company, 1927.
Warning: These citations may not always be 100% accurate.