?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=C&rft.au=Mathews%2C+C&rft.aulast=Mathews&rft.date=2005&rft.title=Prospects+for+pigeonpea+cultivation+in+drought-prone+areas+of+South+Africa&rft.genre=proceeding