United States. Department of Commerce. (1919). War minerals, nitrogen fixation, and sodium cyanide. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Commerce. War Minerals, Nitrogen Fixation, and Sodium Cyanide. [Washington]: GPO, 1919.
MLA (9th ed.) CitationUnited States. Department of Commerce. War Minerals, Nitrogen Fixation, and Sodium Cyanide. GPO, 1919.
Warning: These citations may not always be 100% accurate.