@book{209012,
	author = {Arnal Atares, P. V. and Laguna Blanca, Antonio},
	title = {Tractores y motores agrícolas / P. V. Arnal Atares ; A. Laguna Blanca},
	publisher = {Mundi Prensa},
	year = {1989},
	address = {Madrid},
	edition = {2a ed.},
	note = {Los ej. 4 y 5 son Duplicaciones}
}