Cita APA (7th ed.)

Joseph J. Hobbs. (2017). Fundamental of World Regional Geography (4th ed.). Cengage.

Cita Chicago (17th ed.)

Joseph J. Hobbs. Fundamental of World Regional Geography. 4th ed. Singapore: Cengage, 2017.

Cita MLA (9th ed.)

Joseph J. Hobbs. Fundamental of World Regional Geography. 4th ed. Cengage, 2017.