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 and Mines Bureau of Sri Lanka and Wijayananda, N. P.",Rakwana-Tangalla,,Geological Survey and Mines Bureau of Sri Lanka,2001,Provisional map series,,,,https://cir.nii.ac.jp/crid/1130000797573782272