@book{14940,
	author = {Gran Bretaña. Ministry of Agriculture, Fisheries and Food},
	title = {Pig husbandry and management},
	publisher = {Her Majesty's Stationery Office,},
	year = {1972},
	series = {Her Majesty's Stationary Office. Bulletin},
	address = {London :},
	edition = {2 ed.}
}