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
Geological Survey (South Africa),Victoria West,Gravity edition = Gravitasie-uitgawe,"Republic of South Africa, Government Printer",1989,Geologiese reeks : 1:250 000 = Geological series : 1:250 000,,,,https://cir.nii.ac.jp/crid/1130282271442852864