Searight, W. V. (1952). Lithologic stratigraphy of the Pierre formation of the Missouri Valley in South Dakota. University of South Dakota.
Chicago Style (17th ed.) CitationSearight, Walter Vernon. Lithologic Stratigraphy of the Pierre Formation of the Missouri Valley in South Dakota. Vermillion, S.D.: University of South Dakota, 1952.
MLA (9th ed.) CitationSearight, Walter Vernon. Lithologic Stratigraphy of the Pierre Formation of the Missouri Valley in South Dakota. University of South Dakota, 1952.
Warning: These citations may not always be 100% accurate.