APA (7th ed.) Citation

Gilbert, G. K., & Perry Brigham, A. (1902). Introduction to physical geography. D. Appleton.

Chicago Style (17th ed.) Citation

Gilbert, Grove Karl, and Albert Perry Brigham. Introduction to Physical Geography. New York: D. Appleton, 1902.

MLA (9th ed.) Citation

Gilbert, Grove Karl, and Albert Perry Brigham. Introduction to Physical Geography. D. Appleton, 1902.

Warning: These citations may not always be 100% accurate.