APA (7th ed.) Citation

Pope, C. A., III, & Heady, E. O. (1982). The effects of technological progress and weather on Corn Belt crop yields. Iowa State University, Center for Agricultural and Rural Development.

Chicago Style (17th ed.) Citation

Pope, C. Arden, III, and Earl O. Heady. The Effects of Technological Progress and Weather on Corn Belt Crop Yields. Ames, Iowa: Iowa State University, Center for Agricultural and Rural Development, 1982.

MLA (9th ed.) Citation

Pope, C. Arden, III, and Earl O. Heady. The Effects of Technological Progress and Weather on Corn Belt Crop Yields. Iowa State University, Center for Agricultural and Rural Development, 1982.