@book{64017,
	author = {López López, Rosa M. and Pérez Bonome, Joaquín C.},
	title = {Curso de matemática preparatoria},
	publisher = {Universidad de Puerto Rico, Colegio de Ponce},
	year = {1991.},
	address = {San Juan, Puerto Rico},
	note = {At head of title: Cursos de orientación universitaria.}
}