United States. Department of Commerce. (1915). Radium-uranium ratio in carnotites. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Commerce. Radium-uranium Ratio in Carnotites. [Washington]: GPO, 1915.
MLA (9th ed.) CitationUnited States. Department of Commerce. Radium-uranium Ratio in Carnotites. GPO, 1915.
Warning: These citations may not always be 100% accurate.