Angel, Allen R. Algebra elemental Allen R. Angel ; traductor técnico, Oscar Alfredo Palmas Velasco. - 4. ed. - Naucalpan de Juárez, México Prentice-Hall Hispanoamericana c1998. - 1 v. (various pagings) ill. 26 cm. Includes index. ISBN: 9701701194 (pbk.) Subjects--Topical Terms: AlgebraAlgebra