?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=K+L&rft.au=Sahrawat%2C+K+L&rft.aulast=Sahrawat&rft.atitle=Evaluation+of+triacid+and+dry+ashing+procedures+for+determining+potassium%2C+calcium%2C+magnesium%2C+iron%2C+zinc%2C+manganese%2C+and+copper+in+plant+materials&rft.title=Communications+in+Soil+Science+and+Plant+Analysis&rft.date=2002&rft.volume=33&rft.pages=95-102&rft.issue=1-2&rft.genre=article