United States. Bureau of Mines. (1942). Carbonizing Properties and Petrograhic Composition of No. 2-Bed Coal from Bartoy Mine and No 5-Bed Coal from Wilkeson-Miller Mine, Wilkeson, Pierce County, Washington. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Mines. Carbonizing Properties and Petrograhic Composition of No. 2-Bed Coal from Bartoy Mine and No 5-Bed Coal from Wilkeson-Miller Mine, Wilkeson, Pierce County, Washington. [Washington]: [s.n.], 1942.
MLA (9th ed.) CitationUnited States. Bureau of Mines. Carbonizing Properties and Petrograhic Composition of No. 2-Bed Coal from Bartoy Mine and No 5-Bed Coal from Wilkeson-Miller Mine, Wilkeson, Pierce County, Washington. [s.n.], 1942.
Warning: These citations may not always be 100% accurate.