APA (7th ed.) Citation

Hunnicutt, C. W., & Iverson, W. J. (1958). Research in the three R's. Harper.

Chicago Style (17th ed.) Citation

Hunnicutt, Clarence William, and William J. Iverson. Research in the Three R's. New York: Harper, 1958.

MLA (9th ed.) Citation

Hunnicutt, Clarence William, and William J. Iverson. Research in the Three R's. Harper, 1958.