Cita APA (7th ed.)

McKnight, T. L., & Hess, D. (2002). Physical Geography: A Landscape Appreciation (Seventh edition.). Prentice Hall.

Cita Chicago (17th ed.)

McKnight, Tom L., i Darrel Hess. Physical Geography: A Landscape Appreciation. Seventh edition. New Jersey, United States of America: Prentice Hall, 2002.

Cita MLA (9th ed.)

McKnight, Tom L., i Darrel Hess. Physical Geography: A Landscape Appreciation. Seventh edition. Prentice Hall, 2002.