Douglass, H. R., & Boardman, C. W. (1934). Supervision in secondary schools. Houghton Mifflin Company.
Chicago Style (17th ed.) CitationDouglass, Harl R., and Charles Willis Boardman. Supervision in Secondary Schools. Boston, New York [etc.]: Houghton Mifflin Company, 1934.
MLA (9th ed.) CitationDouglass, Harl R., and Charles Willis Boardman. Supervision in Secondary Schools. Houghton Mifflin Company, 1934.
Warning: These citations may not always be 100% accurate.