United States. Congress. House. Committee on Labor & ProQuest (Firm). (1917). Investigation of wages and labor conditions in coal-mining industry. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Labor and ProQuest (Firm). Investigation of Wages and Labor Conditions in Coal-mining Industry. Washington: [publisher not identified], 1917.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Labor and ProQuest (Firm). Investigation of Wages and Labor Conditions in Coal-mining Industry. [publisher not identified], 1917.
Warning: These citations may not always be 100% accurate.