Cita APA (7th ed.)

Strahler, A. (2011). Introducing Physical geography: Alan Strahler (5th ed.). John Wiley.

Cita Chicago (17th ed.)

Strahler, Alan. Introducing Physical Geography: Alan Strahler. 5th ed. Hoboken NJ: John Wiley, 2011.

Cita MLA (9th ed.)

Strahler, Alan. Introducing Physical Geography: Alan Strahler. 5th ed. John Wiley, 2011.