United States. Bureau of Biological Survey. (1934). Western duck sickness a form of botulism with bacteriological contributions. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Biological Survey. Western Duck Sickness a Form of Botulism with Bacteriological Contributions. [Washington]: [s.n.], 1934.
MLA (9th ed.) CitationUnited States. Bureau of Biological Survey. Western Duck Sickness a Form of Botulism with Bacteriological Contributions. [s.n.], 1934.
Warning: These citations may not always be 100% accurate.