Bedrock geology and mineral resources of the Knoxville 1° x 2° quadrangle Tennessee, North Carolina, and South Carolina
MLA
Robinson, Gilpin R. Bedrock Geology and Mineral Resources of the Knoxville 1° X 2° Quadrangle Tennessee, North Carolina, and South Carolina. U.s. Geological Survey Bulletin. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey, 1992
APA, 7th edition
Robinson, G. R. (1992). Bedrock geology and mineral resources of the Knoxville 1° x 2° quadrangle Tennessee, North Carolina, and South Carolina. U.S. Geological Survey Bulletin. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey
Chicago, 17th edition
Robinson, Gilpin R. Bedrock geology and mineral resources of the Knoxville 1° x 2° quadrangle Tennessee, North Carolina, and South Carolina. U.S. Geological Survey Bulletin. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey, 1992