APA Edition Citation

Leonard, W. H., & Martin, J. H. (1967). Principles of field crop production (2.). Mac Millan Company.

Chicago Edition Citation

Leonard, Warren H., and John H. Martin. Principles of Field Crop Production. 2. Newyork: Mac Millan Company, 1967.

MLA Edition Citation

Leonard, Warren H., and John H. Martin. Principles of Field Crop Production. 2. Mac Millan Company, 1967.

Warning: These citations may not always be 100% accurate.