Erard, Michael. Babel no more : the search for the world's most extraordinary language learners / Michael Erard. - 1st Free Press hardcover ed. - New York : Free Press, 2012. - 306 p. ; 24 cm. Includes bibliographical references. ISBN: 9781451628258 1451628250 LCCN: 2011027964 Subjects--Topical Terms: Historical linguistics. LC Class. No.: P140 / .E73 2012 Dewey Class. No.: 401/.93