United States. Bureau of Labor Statistics & ProQuest (Firm). (1926). Hours and earnings in anthracite and bituminous coal mining, 1922 and 1924. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Labor Statistics and ProQuest (Firm). Hours and Earnings in Anthracite and Bituminous Coal Mining, 1922 and 1924. Washington: [publisher not identified], 1926.
MLA (9th ed.) CitationUnited States. Bureau of Labor Statistics and ProQuest (Firm). Hours and Earnings in Anthracite and Bituminous Coal Mining, 1922 and 1924. [publisher not identified], 1926.
Warning: These citations may not always be 100% accurate.