18 unconventional essays on the nature of mathematics/ Eighteen unconventional essays on the nature of mathematics Reuben Hersh, editor. - New York: Springer, c2006. - xxi, 326 p.: ill.; 24 cm. Includes bibliographical references. ISBN: 0387257179 (acid-free paper) Standard No.: 9780387257174 LCCN: 2005925514 Subjects--Topical Terms: Mathematics--Philosophy. Dewey Class. No.: 511.3 / D532