Cita APA (7a ed.)

Webb, W. P., & Graybill, A. R. (2022). The Great Plains, Second Edition (2nd ed.). Nebraska.

Cita Chicago Style (17a ed.)

Webb, Walter Prescott, y Andrew R. Graybill. The Great Plains, Second Edition. 2nd ed. Lincoln: Nebraska, 2022.

Cita MLA (8a ed.)

Webb, Walter Prescott, y Andrew R. Graybill. The Great Plains, Second Edition. 2nd ed. Nebraska, 2022.