@book{39932,
	author = {Dent, J.B.,},
	title = {Livestock farming systems :},
	publisher = {Brill | Wageningen Academic,},
	year = {1996.},
	series = {Biology - Book Archive pre-2000},
	address = {Leiden ;},
	url = {http://dx.doi.org/10.1163/9789004684232}
}