Crane, W. R. (1926). Strength of ore and top rock in red iron-ore mines of Birmingham district, Ala. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationCrane, Walter R. Strength of Ore and Top Rock in Red Iron-ore Mines of Birmingham District, Ala. [Washington?]: U.S. Government Printing Office, 1926.
MLA (9th ed.) CitationCrane, Walter R. Strength of Ore and Top Rock in Red Iron-ore Mines of Birmingham District, Ala. U.S. Government Printing Office, 1926.
Warning: These citations may not always be 100% accurate.