United States. Congress. House. Committee on Mines and Mining & ProQuest (Firm). (1907). Report of the Inspectors of the Bituminous Coal Region of Pennsylvania to the Chief of the Department of Mines of Pennsylvania. Explosion at the Naomi Mine. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Mines and Mining and ProQuest (Firm). Report of the Inspectors of the Bituminous Coal Region of Pennsylvania to the Chief of the Department of Mines of Pennsylvania. Explosion at the Naomi Mine. [Place of publication not identified]: [publisher not identified], 1907.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Mines and Mining and ProQuest (Firm). Report of the Inspectors of the Bituminous Coal Region of Pennsylvania to the Chief of the Department of Mines of Pennsylvania. Explosion at the Naomi Mine. [publisher not identified], 1907.