APA (7th ed.) Citation

Good, C. V., Barr, A. S., & Scates, D. E. (1941). The methodology of educational research. Appleton-Century.

Chicago Style (17th ed.) Citation

Good, Carter Victor, Arvil Sylvester Barr, and Douglas Edgar Scates. The Methodology of Educational Research. New York: Appleton-Century, 1941.

MLA (9th ed.) Citation

Good, Carter Victor, et al. The Methodology of Educational Research. Appleton-Century, 1941.