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
University of the Punjab. Social Sciences Research Centre,Factors influencing migration to urban areas in Pakistan : a case study of Gujranwala City,,Pakistan Institute of Development Economics,1977,Research report series,,,,https://cir.nii.ac.jp/crid/1130000793866792832