Haley, B. R., & Hendricks, T. A. (1968). Geology of the Greenwood quadrangle, Arkansas-Oklahoma. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationHaley, Boyd Raymond, and Thomas Andrews Hendricks. Geology of the Greenwood Quadrangle, Arkansas-Oklahoma. Washington: United States Department of the Interior, Geological Survey, 1968.
MLA (9th ed.) CitationHaley, Boyd Raymond, and Thomas Andrews Hendricks. Geology of the Greenwood Quadrangle, Arkansas-Oklahoma. United States Department of the Interior, Geological Survey, 1968.
Warning: These citations may not always be 100% accurate.