APA (7th ed.) Citation

Karlsen, A. W., SanFilipo, J. R., & Warwick, P. D. (2002). Coal underlying federal lands in the Gulf of Mexico coastal plain. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Karlsen, Alex W., John R. SanFilipo, and Peter D. Warwick. Coal Underlying Federal Lands in the Gulf of Mexico Coastal Plain. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2002.

MLA (9th ed.) Citation

Karlsen, Alex W., et al. Coal Underlying Federal Lands in the Gulf of Mexico Coastal Plain. U.S. Dept. of the Interior, U.S. Geological Survey, 2002.