@book{12219,
	author = {Peña Santos, Antonio de la. and Vázquez Varela, José Manuel.},
	title = {Los petroglifos gallegos },
	publisher = {Ediciós do Castro, },
	year = {1992.},
	series = {Cuadernos del Seminario de Estudios Cerámicos de Sargadelos ; },
	address = {Sada, La Coruña : },
	edition = {2ª ed.}
}