@book{7841,
	author = {Carreño, Manuel A. and Sierra Carrasquilla, Juan Ramón},
	title = {Manual de urbanidad y buenas maneras},
	publisher = {Panamericana},
	year = {2007},
	series = {Paraeducativo},
	address = {Bogotá},
	edition = {1a. edición }
}