?url_ver=Z39.88-2004&rft_id=10.1111%2Fj.1435-5597.1995.tb00641.x&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=MacKellar%2C+F.L.&rft.aulast=MacKellar&rft.aufirst=F.L.&rft.issue=3&rft.volume=74&rft.date=1995&rft.issn=1435-5957&rft.atitle=Population+concentration+in+less+developed+countries%3A+New+evidence&rft.title=Papers+in+Regional+Science&rft.pages=259-293&rft.genre=article