@book{8909,
	author = {Preston,T.R. and Leng, R.A.},
	title = {Matching Ruminant Production Systems with available resources in the Tropics and Sub-Tropics /},
	publisher = {Penambul Books ,},
	year = {c1987.},
	address = {Armidale :},
	note = {Includes bibliographical references (p.215-232) and index}
}