Derbyshire, John Unknown quantity : a real and imaginary history of algebra John Derbyshire - Washington, D.C Joseph Henry Press 2006 - viii, 374 p., [8] p. of plates : ill., ports. ; 24 cm Includes bibliographical references and index ISBN: 9781843545705 ISSN: 2005037018 Subjects--Topical Terms: Mathematics Dewey Class. No.: 512.009 DER