@book{178105,
	author = {Dewey, Melvil, and Rojas L., Octavio G.},
	title = {Sistema de clasificación decimal Dewey e índice relativo},
	publisher = {Rojas Eberhard Editores Ltda},
	year = {2000.},
	address = {Bogotá, Colombia},
	edition = {21a ed.}
}