Purdon, R. L. (1925). World trade in canned salmon. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationPurdon, Rupert L. World Trade in Canned Salmon. [Washington?]: U.S. Government Printing Office, 1925.
MLA (9th ed.) CitationPurdon, Rupert L. World Trade in Canned Salmon. U.S. Government Printing Office, 1925.
Warning: These citations may not always be 100% accurate.