United States. Department of Commerce. (1941). Twenty-Eighth Report of the Secretary of Commerce, Fiscal Year 1940. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Department of Commerce. Twenty-Eighth Report of the Secretary of Commerce, Fiscal Year 1940. [Washington]: [s.n.], 1941.
MLA (9th ed.) CitationUnited States. Department of Commerce. Twenty-Eighth Report of the Secretary of Commerce, Fiscal Year 1940. [s.n.], 1941.
Warning: These citations may not always be 100% accurate.