?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Virmani%2C+S+M&rft.aufirst=S+M&rft.aulast=Virmani&rft.issn=0019-638X&rft.pages=516-524&rft.atitle=UNCED+Agenda+21%3A+The+New+Challenges+for+Soils+Research&rft.volume=42&rft.issue=4&rft.title=Journal+of+the+Indian+Sociely+of+Soii+Science&rft.date=1994&rft.genre=article