Geological Survey (U.S.) & Reheis, M. C. (1984). Geologic map and coal sections of the Thornburgh quadrangle, Moffat and Rio Blanco Counties, Colorado. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and Marith C. Reheis. Geologic Map and Coal Sections of the Thornburgh Quadrangle, Moffat and Rio Blanco Counties, Colorado. Reston, Va.: The Survey, 1984.
MLA (9th ed.) CitationGeological Survey (U.S.) and Marith C. Reheis. Geologic Map and Coal Sections of the Thornburgh Quadrangle, Moffat and Rio Blanco Counties, Colorado. The Survey, 1984.
Warning: These citations may not always be 100% accurate.