Park, J. L. (1927). Ethiopia: Commercial and economic survey. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationPark, James Loder. Ethiopia: Commercial and Economic Survey. [Washington?]: U.S. Government Printing Office, 1927.
MLA (9th ed.) CitationPark, James Loder. Ethiopia: Commercial and Economic Survey. U.S. Government Printing Office, 1927.
Warning: These citations may not always be 100% accurate.