Schwarz, L. J. (1932). Cocoa in Sao Tome and Principe. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationSchwarz, Leonard J. Cocoa in Sao Tome and Principe. [Washington?]: U.S. Government Printing Office, 1932.
MLA (9th ed.) CitationSchwarz, Leonard J. Cocoa in Sao Tome and Principe. U.S. Government Printing Office, 1932.
Warning: These citations may not always be 100% accurate.