Geological Survey (U.S.). (1990). Selected caves and lava-tube systems in and near Lava Beds National Monument, California. [Dept. of the Interior, U.S. Geological Survey].
Chicago Style (17th ed.) CitationGeological Survey (U.S.). Selected Caves and Lava-tube Systems in and Near Lava Beds National Monument, California. [Reston, Va.]: [Dept. of the Interior, U.S. Geological Survey], 1990.
MLA (9th ed.) CitationGeological Survey (U.S.). Selected Caves and Lava-tube Systems in and Near Lava Beds National Monument, California. [Dept. of the Interior, U.S. Geological Survey], 1990.
Warning: These citations may not always be 100% accurate.