The U.S. Geological Survey Geologic Collections Management System (GCMS) : a master catalog and collections management plan for U.S. Geological Survey geologic samples and sample collections

MLA

Geological Survey (U.S.). and Geological Survey (U.S.). The U.S. Geological Survey Geologic Collections Management System (GCMS) : a master catalog and collections management plan for U.S. Geological Survey geologic samples and sample collections. Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2015.

APA

Geological Survey (U.S.). & Geological Survey (U.S.). (2015). The U.S. Geological Survey Geologic Collections Management System (GCMS) : a master catalog and collections management plan for U.S. Geological Survey geologic samples and sample collections. Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey.

Chicago

Geological Survey (U.S.). and Geological Survey (U.S.). The U.S. Geological Survey Geologic Collections Management System (GCMS) : a master catalog and collections management plan for U.S. Geological Survey geologic samples and sample collections. Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2015.