APA (7th ed.) Citation

Geological Survey (U.S.), U.S. Geological Survey National Mineral Resource Assessment Team, & Schruben, P. G. (2002). Assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States: A portable document (PDF) recompilation of USGS OFR 96-96 and Circular 1178. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), U.S. Geological Survey National Mineral Resource Assessment Team, and Paul G. Schruben. Assessment of Undiscovered Deposits of Gold, Silver, Copper, Lead, and Zinc in the United States: A Portable Document (PDF) Recompilation of USGS OFR 96-96 and Circular 1178. Reston, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 2002.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Assessment of Undiscovered Deposits of Gold, Silver, Copper, Lead, and Zinc in the United States: A Portable Document (PDF) Recompilation of USGS OFR 96-96 and Circular 1178. U.S. Dept. of the Interior, U.S. Geological Survey, 2002.