APA (7th ed.) Citation

Cooper, H. W., Smith, J. E., & Atkins, M. D. (1957). Producing and harvesting grass seed in the Great Plains. U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Cooper, Harold W., James E. Smith, and Maurice Donald Atkins. Producing and Harvesting Grass Seed in the Great Plains. Washington, D.C: U.S. Dept. of Agriculture, 1957.

MLA (9th ed.) Citation

Cooper, Harold W., et al. Producing and Harvesting Grass Seed in the Great Plains. U.S. Dept. of Agriculture, 1957.