Wolfe, T. K., & Kipps, M. S. (1959). Production of field crops: A textbook of agronomy (5th. ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)Wolfe, T. K., y M. S. Kipps. Production of Field Crops: A Textbook of Agronomy. 5th. ed. New York: McGraw-Hill, 1959.
Cita MLA (8a ed.)Wolfe, T. K., y M. S. Kipps. Production of Field Crops: A Textbook of Agronomy. 5th. ed. McGraw-Hill, 1959.
Precaución: Estas citas no son 100% exactas.