Cita APA (7a ed.)

Hobbs, J. J., & Salter, C. L. (2006). Essentials of world regional geography. Belmont, CA : Thomson Brools/Cole.

Cita Chicago Style (17a ed.)

Hobbs, Joseph J., y Christopher L. Salter. Essentials of World Regional Geography. Belmont, CA : Thomson Brools/Cole, 2006.

Cita MLA (9a ed.)

Hobbs, Joseph J., y Christopher L. Salter. Essentials of World Regional Geography. Belmont, CA : Thomson Brools/Cole, 2006.