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
"Townsend, Joseph",A journey through Spain in the years 1786 and 1787,,Eureka Press,2006,Conceptual origins of Malthus's 'Essay on population',,,,https://cir.nii.ac.jp/crid/1130282269375511168