著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL United States. Dept. of Agriculture. Economic Research Service,"Nigeria : determinants of projected level of demand, supply, and imports of farm products in 1965 and 1975",,"Economic Research Service, U.S. Dept. of Agriculture",1962,ERS-foreign,,,,https://cir.nii.ac.jp/crid/1130000797042195200