Grattan-Guinness, I. Routes of learning: highways, pathways, and byways in the history of mathematics/ Ivor Grattan-Guinness. - Baltimore: Johns Hopkins University Press, 2009. - xii, 372 p.: ill.; 23 cm. Includes bibliographical references and index. ISBN: 9780801892486 (pbk. : alk. paper) 0801892481 9780801892479 0801892473 LCCN: 2008046474 Subjects--Topical Terms: Mathematics--History. Dewey Class. No.: 510.9 / G773r