APA (7th ed.) Citation

McKnight, T. L. (1990). Physical geography: A landscape appreciation (3rd ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

McKnight, Tom L. Physical Geography: A Landscape Appreciation. 3rd ed. Englewood Cliffs, N. J: Prentice-Hall, 1990.

MLA (9th ed.) Citation

McKnight, Tom L. Physical Geography: A Landscape Appreciation. 3rd ed. Prentice-Hall, 1990.