@book{16215,
	author = {Aucallanchi Velasquez, Félix},
	title = {Problemas de física y cómo resolverlos.},
	publisher = {Racso Editores,},
	year = {1977.},
	series = {Colección Racso},
	address = {Lima :},
	edition = {4a ed.}
}