Knapp, Anthony W. Basic algebra : along with a companion volume advanced algebra / Knapp, Anthony W. - Boston: BirkhΣuser, 2006. - xxii, 717p.; 24cm. - Cornerstones ; edited by Charles L. Epstein and Steven G. Kr . Includes bibliographical references. ISBN: 9780817632489 Dewey Class. No.: 512.9 KNA