United States. National Bituminous Coal Commission. (1937). Second annual report of the National Bituminous Coal Commission, fiscal year ended 1938, with additional activities to Nov. 15, 1938. [s.n.].
Chicago Style (17th ed.) CitationUnited States. National Bituminous Coal Commission. Second Annual Report of the National Bituminous Coal Commission, Fiscal Year Ended 1938, with Additional Activities to Nov. 15, 1938. [Washington]: [s.n.], 1937.
MLA (9th ed.) CitationUnited States. National Bituminous Coal Commission. Second Annual Report of the National Bituminous Coal Commission, Fiscal Year Ended 1938, with Additional Activities to Nov. 15, 1938. [s.n.], 1937.
Warning: These citations may not always be 100% accurate.