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
,"Informal credit and commodity trade in Benguet, upland Luzon",,"Cordillera Studies Center, University of the Philippines",1989,Cordillera monograph,,,,https://cir.nii.ac.jp/crid/1130282271862832384