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
"Gibson, Jeffry Royle","A demographic analysis of urbanization : evolution of a system of cities in Honduras, El Salvador, and Costa Rica",,Cornell University,1970,Dissertation series (Cornell University. Latin American Studies Program),,,,https://cir.nii.ac.jp/crid/1130000797731465216