@book{9958,
	author = {Llibre de Vargas, Claudia and García de Escobar, Obdulia},
	title = {Ciencias de la naturaleza 4 :},
	publisher = {Santillana, },
	year = {1998.},
	address = {Santo Domingo :},
	note = {La biblioteca solamente posee el libro de texto.}
}