APA (7th ed.) Citation

Back, E. A., & Cotton, R. T. (1931). Control of insect pests in stored grain. U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Back, E. A., and R. T. Cotton. Control of Insect Pests in Stored Grain. Washington, D.C: U.S. Dept. of Agriculture, 1931.

MLA (9th ed.) Citation

Back, E. A., and R. T. Cotton. Control of Insect Pests in Stored Grain. U.S. Dept. of Agriculture, 1931.