APA (7th ed.) Citation

Steidl, P. F. (1977). Geology and methane content of the upper Freeport coalbed in Fayette County, Pa. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Steidl, Peter F. Geology and Methane Content of the Upper Freeport Coalbed in Fayette County, Pa. [Washington]: Dept. of the Interior, Bureau of Mines, 1977.

MLA (9th ed.) Citation

Steidl, Peter F. Geology and Methane Content of the Upper Freeport Coalbed in Fayette County, Pa. Dept. of the Interior, Bureau of Mines, 1977.