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
"Oppen, Achim von",Terms of trade and terms of trust : the history and contexts of pre-colonial market production around the Upper Zambezi and Kasai,,LIT Verlag,1993,Studien zur afrikanischen Geschichte,,3894732466,,https://cir.nii.ac.jp/crid/1130000795323002496