?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=G&rft.au=Diiro%2C+G&rft.aulast=Diiro&rft.date=February+2017&rft.title=Adoption+of+soil+and+water+conservation+practices+under+different+farming+systems+in+the+Sahel+region+of+northern+Mali&rft.genre=proceeding