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
"Horwood, O. P. F. (Owen Pieter Faure) and University of Natal. Dept. of Economics",Resources and primary activities,,"Department of Economics, University of Natal",1967,Natal regional survey series,,,,https://cir.nii.ac.jp/crid/1130282270858437248