@book{5875,
	author = {Ortiz Rivera, Ernesto J.},
	title = {Una isla en la encrucijada de la prehistoria humana / },
	editor = {Cooperativa Artes Gráficas Romualdo Real},
	publisher = {Cooperativa Artes Gráficas Romualdo Real},
	year = {1980, },
	address = {San Juan, PR: },
	edition = {1a ed.}
}