APA (7th ed.) Citation

Wills, J. E., & Justus, F. E. (1956). Increasing production and earnings on farms in the claypan area of southern Illinois. Univ. of Ill.

Chicago Style (17th ed.) Citation

Wills, J. E., and Fred E. Justus. Increasing Production and Earnings on Farms in the Claypan Area of Southern Illinois. Urbana: Univ. of Ill, 1956.

MLA (9th ed.) Citation

Wills, J. E., and Fred E. Justus. Increasing Production and Earnings on Farms in the Claypan Area of Southern Illinois. Univ. of Ill, 1956.