United States. Bureau of Biological Survey. (1939). History and significance of American wildlife: II, Trends from exploitation to restoration. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Biological Survey. History and Significance of American Wildlife: II, Trends from Exploitation to Restoration. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationUnited States. Bureau of Biological Survey. History and Significance of American Wildlife: II, Trends from Exploitation to Restoration. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.