?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Geiger%2C+S+C&rft.aufirst=S+C&rft.aulast=Geiger&rft.issn=0361-5995&rft.pages=227-231&rft.atitle=Variability+in+the+growth+of+faidherbia+albida%3A+The+soils+connection&rft.volume=58&rft.issue=1&rft.title=Soil+Science+Society+of+America+Journal&rft.date=1994&rft.genre=article