Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
United States. Department of Commerce. Division of Statistics and United States. Bureau of Foreign and Domestic Commerce,Foreign trade of the United States in the calendar year 1927 : according to the international statistical classification,,U.S. Dept. of Commerce. Bureau of Foreign and Domestic Commerce,1928,Trade information bulletin,,,,https://cir.nii.ac.jp/crid/1130857346321728149