?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=H+A&rft.au=Ajeigbe%2C+H+A&rft.aulast=Ajeigbe&rft.date=2019&rft.title=Seed+Needs+Assessment+in+Northeastern+Nigeria&rft.genre=proceeding