?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Miguel%2C+M&rft.aufirst=M&rft.aulast=Miguel&rft.atitle=Common+beans%3A+Benefits+for+farmers+engaging+in+market-oriented+production&rft.date=September+2015&rft.genre=article