APA (7th ed.) Citation

Nagel, R. (2004). UXL encyclopedia of landforms and other geologic features. UXL.

Chicago Style (17th ed.) Citation

Nagel, Rob. UXL Encyclopedia of Landforms and Other Geologic Features. Detroit: UXL, 2004.

MLA (9th ed.) Citation

Nagel, Rob. UXL Encyclopedia of Landforms and Other Geologic Features. UXL, 2004.

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