APA (7th ed.) Citation

Smith, S., & Speer, R. K. (1938). Supervision in the elementary school. The Cordon company.

Chicago Style (17th ed.) Citation

Smith, Samuel, and Robert Kenneth Speer. Supervision in the Elementary School. New York: The Cordon company, 1938.

MLA (9th ed.) Citation

Smith, Samuel, and Robert Kenneth Speer. Supervision in the Elementary School. The Cordon company, 1938.