APA (7th ed.) Citation

Erickson, J. (1993). Rock formations and unusual geologic structures: Exploring the earth's surface. Facts on File.

Chicago Style (17th ed.) Citation

Erickson, Jon. Rock Formations and Unusual Geologic Structures: Exploring the Earth's Surface. New York: Facts on File, 1993.

MLA (9th ed.) Citation

Erickson, Jon. Rock Formations and Unusual Geologic Structures: Exploring the Earth's Surface. Facts on File, 1993.

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