?url_ver=Z39.88-2004&rft_id=10.1068%2Fa120489&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Rogers%2C+A.&rft.aulast=Rogers&rft.aufirst=A.&rft.issue=5&rft.volume=12&rft.date=May+1980&rft.issn=0308-518X&rft.atitle=Introduction+to+multistate+mathematical+demography&rft.title=Environment+and+Planning+A&rft.pages=489-498&rft.genre=article