00750cam a2200217 4500 121317542 TxAuBib 20070810120000.0 030618s2002||||||||||||||||||||||||eng|u 9780156007535 0156007533 FJD FJD OCLCQ BAKER NLGGC GZD TxAuBib Aczel, Amir D. The riddle of the compass [TP] : the invention that changed the world / Amir D. Aczel. 1st Harvest ed. San Diego : Harvest/Harcourt, 2002. xvii, 178 p. : ill., maps ; 21 cm. Includes bibliographical references (p. 165-168) and index. 20070810. Compass.