Cita APA (7a ed.)

Hicks, G. L. (1973). Appalachian Valley. Holt, Rinehart and Winston.

Cita Chicago Style (17a ed.)

Hicks, George L. Appalachian Valley. Nueva York: Holt, Rinehart and Winston, 1973.

Cita MLA (8a ed.)

Hicks, George L. Appalachian Valley. Holt, Rinehart and Winston, 1973.