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
Philippines. Geological Survey Division,Refractory raw materials in the Philippines,,Republic of the Philippines. Dept. of Natural Resources. Bureau of Mines,1977,Report of investigation,,,,https://cir.nii.ac.jp/crid/1130282269750913024