Cita APA (7a ed.)

Sprague, G. F., & Dudley, J. W. (1988). Corn and corn improvement (3rd. ed.). American Society of Agronomy ; Crop Science Society of America ; Soil Science Society of America.

Cita Chicago Style (17a ed.)

Sprague, George F., y J. W. Dudley. Corn and Corn Improvement. 3rd. ed. Madison: American Society of Agronomy ; Crop Science Society of America ; Soil Science Society of America, 1988.

Cita MLA (8a ed.)

Sprague, George F., y J. W. Dudley. Corn and Corn Improvement. 3rd. ed. American Society of Agronomy ; Crop Science Society of America ; Soil Science Society of America, 1988.