@book{9430,
	author = {Mejia Vallejo, Manuel, and Benjamin, Villegas},
	title = {Colombia campesina },
	publisher = {Villegas Editores},
	year = {2011},
	address = {Bogot },
	edition = {2a. edicin̤ },
	note = {Donacion Villegas Editores}
}