APA (7th ed.) Citation

Frey, H. T., & Otte, R. C. (1975). Cropland for today and tomorrow. Economic Research Service, U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Frey, H. Thomas, and Robert C. Otte. Cropland for Today and Tomorrow. Washington, D.C.: Economic Research Service, U.S. Dept. of Agriculture, 1975.

MLA (9th ed.) Citation

Frey, H. Thomas, and Robert C. Otte. Cropland for Today and Tomorrow. Economic Research Service, U.S. Dept. of Agriculture, 1975.