Research methodology for livestock on-farm trials : proceedings of a workshop held at Aleppo, Syria, 25-28 March 1985 / editors: Thomas L. Nordblom, Awad El Karim Hamid Ahmed, and Gordon R. Potts. Potts, Gordon R. Nordblom, Thoams L. Ahmed, Awad El Karim Hamid. International Development Research Centre (Canada) International Center for Agricultural Research in the Dry Areas. Agricultural experiment stations Middle East Congresses. Agricultural experiment stations Africa Congresses. Livestock Research Middle East Congresses. Livestock Research Africa Congresses. 636.0015 19 RES Cosponsored by the International Center for Agricultural Research in the Dry Areas and the International Development Research Centre. Ottawa, Ontario : International Development Research Centre, c1985. c1985. 1985 Text 313, [54] p. ; eng eng IDRC-242e IDRC (Series) ; 242e. Middle East Africa Middle East Africa