APA (7th ed.) Citation

Fenske, T. H., Drake, R. M., Edson, A. W., & Field, A. M. (1939). Arithmetic in agriculture. Webb Book Pub. Co..

Chicago Style (17th ed.) Citation

Fenske, Theodore H., Richard M. Drake, Allen W. Edson, and A. M. Field. Arithmetic in Agriculture. Saint Paul: Webb Book Pub. Co., 1939.

MLA (8th ed.) Citation

Fenske, Theodore H., et al. Arithmetic in Agriculture. Webb Book Pub. Co., 1939.