APA (7th ed.) Citation

Thornton, M. K., Fudge, J. F., & Kapp, L. C. (1948). The use of soil tests. Texas A. and M. College System, Extension Service.

Chicago Style (17th ed.) Citation

Thornton, M. K., J. F. Fudge, and L. C. Kapp. The Use of Soil Tests. College Station, Texas: Texas A. and M. College System, Extension Service, 1948.

MLA (9th ed.) Citation

Thornton, M. K., et al. The Use of Soil Tests. Texas A. and M. College System, Extension Service, 1948.