Weltman, Dennis Intermediate algebra / Dennis Weltman, Gilbert Perez - 3rd ed. , instructor's ed. - Boston, Mass. : PWS Pub. Co., c1994 - 696 p. : ill. (some col.) - The PWS series in precalculus, liberal arts mathematics, and teacher training . Includes index ISBN: 0534937268 Subjects--Topical Terms: ALGEBRA LC Class. No.: QA154.2 / W447I 1994