@book{134759,
	author = {Potts, Gordon R. and International Development Research Centre (Canada)},
	title = {Research methodology for livestock on-farm trials :},
	publisher = {International Development Research Centre,},
	year = {c1985.},
	series = {IDRC-242e},
	address = {Ottawa, Ontario :},
	note = {Cosponsored by the International Center for Agricultural Research in the Dry Areas and the International Development Research Centre.}
}