Ellison, S. P. (1950). Subsurface Woodford black shale, West Texas and southeast New Mexico. [publisher not identified].
Chicago Style (17th ed.) CitationEllison, Samuel P. Subsurface Woodford Black Shale, West Texas and Southeast New Mexico. [Austin]: [publisher not identified], 1950.
MLA (9th ed.) CitationEllison, Samuel P. Subsurface Woodford Black Shale, West Texas and Southeast New Mexico. [publisher not identified], 1950.
Warning: These citations may not always be 100% accurate.