APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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