Stratton, H. J. (1950). The publications of the Bureau of Mines July 1,1910-January 1,1949: With subject and author index. Washington: Government Printing Office.
Παραπομπή Chicago StyleStratton, Hazel J. The Publications of the Bureau of Mines July 1,1910-January 1,1949: With Subject and Author Index. Washington: Government Printing Office, 1950.
Παραπομπή MLAStratton, Hazel J. The Publications of the Bureau of Mines July 1,1910-January 1,1949: With Subject and Author Index. Washington: Government Printing Office, 1950.
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