?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Dykstra%2C+D.&rft.aulast=Dykstra&rft.aufirst=D.&rft.issue=11&rft.volume=81&rft.date=1+November+1983&rft.issn=00221201&rft.atitle=World+Forestry%3A+Forestry+in+Tanzania&rft.title=Journal+of+Forestry&rft.pages=742-746&rft.genre=article