Amsden, T. W. (1961). Stratigraphy of the Frisco and Sallisaw formations (Devonian) of Oklahoma. University of Oklahoma.
Chicago Style (17th ed.) CitationAmsden, Thomas William. Stratigraphy of the Frisco and Sallisaw Formations (Devonian) of Oklahoma. Norman: University of Oklahoma, 1961.
MLA (9th ed.) CitationAmsden, Thomas William. Stratigraphy of the Frisco and Sallisaw Formations (Devonian) of Oklahoma. University of Oklahoma, 1961.
Warning: These citations may not always be 100% accurate.