@book{4303,
	author = {ERICKSON, JON.},
	title = {LA EXTINCION DE LAS ESPECIES : },
	publisher = {MCGRAW-HILL},
	year = {1992},
	series = {SER. MCGRAW-HILL DE DIVULGACION CIENTIFICA},
	address = {MADRID: },
	note = {INCLUYE INDICE. \ BIBLIOGRAFIA: P. 201-206.}
}