Tooker, E. W., Wedow, H., & Geological Survey. (1980). Preliminary map of zinc provinces in the conterminous United States. U.S. Geological Survey.
Chicago Style (17th ed.) CitationTooker, Edwin W., Helmuth Wedow, and Geological Survey. Preliminary Map of Zinc Provinces in the Conterminous United States. [Reston, Va.]: U.S. Geological Survey, 1980.
MLA (8th ed.) CitationTooker, Edwin W., et al. Preliminary Map of Zinc Provinces in the Conterminous United States. U.S. Geological Survey, 1980.
Warning: These citations may not always be 100% accurate.