?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=L+T&rft.au=Narteh%2C+L+T&rft.aulast=Narteh&rft.atitle=Oxalate+and+EDTA+extractable+soil+phosphorus+and+iron+in+relation+to+P+availability+in+lowland+rice+soils+of+West+Africa&rft.title=Ghana+Journal+of+Agricultural+Science&rft.issn=0855-0042&rft.date=1999&rft.volume=32&rft.pages=189-198&rft.issue=2&rft.genre=article