APA (7th ed.) Citation

Geyer, J. N., & Paul, J. W. (1932). Falls of roof and coal in mines operating in Pittsburgh coal bed, Panhandle district, West Virginia. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Geyer, John Nicholas, and J. W. Paul. Falls of Roof and Coal in Mines Operating in Pittsburgh Coal Bed, Panhandle District, West Virginia. [Washington?]: U.S. Government Printing Office, 1932.

MLA (9th ed.) Citation

Geyer, John Nicholas, and J. W. Paul. Falls of Roof and Coal in Mines Operating in Pittsburgh Coal Bed, Panhandle District, West Virginia. U.S. Government Printing Office, 1932.