Johnson, D. G., & Gustafson, R. L. (1962). Grain yields and the American food supply: An analysis of yield changes and possibilities. University of Chicago Press.
Chicago Style (17th ed.) CitationJohnson, D. Gale, and Robert L. Gustafson. Grain Yields and the American Food Supply: An Analysis of Yield Changes and Possibilities. [Chicago]: University of Chicago Press, 1962.
MLA (9th ed.) CitationJohnson, D. Gale, and Robert L. Gustafson. Grain Yields and the American Food Supply: An Analysis of Yield Changes and Possibilities. University of Chicago Press, 1962.
Warning: These citations may not always be 100% accurate.