Cox, J. F., & Jackson, L. E. (1937). Crops: A self teaching course, based on crop management and soil conservation. John Wiley & Sons INC.
Chicago Edition CitationCox, Joseph F., and Lyman E. Jackson. Crops: A Self Teaching Course, Based on Crop Management and Soil Conservation. NewYork: John Wiley & Sons INC, 1937.
MLA Edition CitationCox, Joseph F., and Lyman E. Jackson. Crops: A Self Teaching Course, Based on Crop Management and Soil Conservation. John Wiley & Sons INC, 1937.
Warning: These citations may not always be 100% accurate.