U.S. Geological Survey national water census : Colorado River Basin geographic focus area study.

MLA

Geological Survey (U.S.). U.S. Geological Survey national water census : Colorado River Basin geographic focus area study. Reston, VA : U.S. Department of the Interior, U.S. Geological Survey, 2015.

APA

Geological Survey (U.S.). (2015). U.S. Geological Survey national water census : Colorado River Basin geographic focus area study. Reston, VA : U.S. Department of the Interior, U.S. Geological Survey.

Chicago

Geological Survey (U.S.). U.S. Geological Survey national water census : Colorado River Basin geographic focus area study. Reston, VA : U.S. Department of the Interior, U.S. Geological Survey, 2015.