@book{21194,
	author = {Beltran Jiménez, Yeimy Yineth and Ramírez Bastidas, Jhonatan },
	title = {Rueda ambiental /},
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2010.},
	address = {Bogotá (Colombia) :},
	edition = {                   }
}