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
"Nigerian Institute of Social and Economic Research and Oyelabi, J. Ade","Tariffs, domestic prices, effective protection, and the structure of foreign trade in Nigeria",,"Nigerian Institute of Social and Economic Research, University of Ibadan",1979,N.I.S.E.R monograph series,,9781810076,,https://cir.nii.ac.jp/crid/1130282270554868224