Thomas, D. L., & Heady, E. O. (1977). American agriculture in 1980 under a fertilizer allocation system. Center for Agricultural and Rural Development, Iowa State University.
Chicago Style (17th ed.) CitationThomas, Dennis L., and Earl O. Heady. American Agriculture in 1980 Under a Fertilizer Allocation System. Ames, Iowa: Center for Agricultural and Rural Development, Iowa State University, 1977.
MLA (9th ed.) CitationThomas, Dennis L., and Earl O. Heady. American Agriculture in 1980 Under a Fertilizer Allocation System. Center for Agricultural and Rural Development, Iowa State University, 1977.
Warning: These citations may not always be 100% accurate.