?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Webster%2C+T&rft.aufirst=T&rft.aulast=Webster&rft.date=November+2015&rft.title=Expanding+supply+of+improved+seed+to+farmers+in+northern+Ghana+to+increase+food+security&rft.genre=proceeding