?url_ver=Z39.88-2004&rft_id=10.1017%2FS0376892900018531&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Levien%2C+R.&rft.aulast=Levien&rft.aufirst=R.&rft.issue=03&rft.volume=3&rft.date=January+1976&rft.issn=0376-8929&rft.atitle=Ecological+Management+from+an+International+Perspective&rft.title=Environmental+Conservation&rft.pages=183-184&rft.genre=article