Workshop [on] Research Methodology for Livestock On-Farm Trials [1985 : Aleppo, Syria] : Proceedings /
eidted by Thomas L. Nordblom, Awad El Karim Hamid Ahmed and Gordon R. Potts .-
- Ottawa : International Development Research Centre , 1985.
- 313 [54] p. : graphs. -
- (IDRC- 242 e) .