@book{7048,
	author = {Rincón Álvarez, Manuel, },
	title = {Andar por la Sierra de Guadarrama },
	publisher = {Penthalon, },
	year = {1989.},
	series = {El búho viajero. Aire libre ; },
	address = {Madrid : },
	edition = {2ª ed.},
	note = {Anexos.}
}