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
"Vijayan Unni, M. and India. Office of the Registrar General & Census Commissioner","General population tables : table A-4, towns and urban agglomerations classified by population in 1991 with variations since 1901",,Controller of Publications,1998,"Census of India, 1991",,,,https://cir.nii.ac.jp/crid/1130000794510524416