?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=L+A&rft.au=Enyong%2C+L+A&rft.aulast=Enyong&rft.atitle=Farmers%E2%80%99+perceptions+and+attitudes+towards+introduced+soil-fertility+enhancing+technologies+in+western+Africa&rft.title=Nutrient+Cycling+in+Agroecosystems&rft.issn=1385-1314&rft.date=1999&rft.volume=53&rft.pages=177-187&rft.issue=2&rft.genre=article