APA (7th ed.) Citation

Gill, W. R., & Vanden Berg, G. E. (1967). Soil dynamics in tillage and traction. Agricultural Research Service, U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Gill, William R., and Glen E. Vanden Berg. Soil Dynamics in Tillage and Traction. [Washington]: Agricultural Research Service, U.S. Dept. of Agriculture, 1967.

MLA (9th ed.) Citation

Gill, William R., and Glen E. Vanden Berg. Soil Dynamics in Tillage and Traction. Agricultural Research Service, U.S. Dept. of Agriculture, 1967.