Cramer, G. L., .Cramer, G. L., & .Heid, W. G. (1983). Grain marketing economics. John Wiley & Sons.
Chicago Style (17th ed.) CitationCramer, Gail L., Gail L. .Cramer, and Walter G. .Heid. Grain Marketing Economics. New York: John Wiley & Sons, 1983.
MLA (9th ed.) CitationCramer, Gail L., et al. Grain Marketing Economics. John Wiley & Sons, 1983.