Caldwell, O. W., & Courtis, S. A. (1924). Then & now in education, 1845:1923: A message of encouragement from the past to the present. World Book Company.
Chicago Style (17th ed.) CitationCaldwell, Otis W., and Stuart A. Courtis. Then & Now in Education, 1845:1923: A Message of Encouragement from the Past to the Present. Yonkers-on-Hudson, New York: World Book Company, 1924.
MLA (9th ed.) CitationCaldwell, Otis W., and Stuart A. Courtis. Then & Now in Education, 1845:1923: A Message of Encouragement from the Past to the Present. World Book Company, 1924.
Warning: These citations may not always be 100% accurate.