Thompson, H. C., & Kelly, W. C. (1957). Vegetable crops. McGraw-Hill.
Cita Chicago Style (17a ed.)Thompson, Homer C., y William C. Kelly. Vegetable Crops. New York: McGraw-Hill, 1957.
Cita MLA (8a ed.)Thompson, Homer C., y William C. Kelly. Vegetable Crops. McGraw-Hill, 1957.
Precaución: Estas citas no son 100% exactas.