Clausing, Donald J. Aviator's guide to navigation / Donald J. Clausing - 3rd ed. - New York : McGraw Hill, 1997 - xvii, 342 p. : ill., map ; 25 cm. - Practical flying series . Includes bibliographical references and index ISBN: 0070117918 (alk. paper) 0070117926 (sc : alk. paper) RM128.62 LCCN: 96-051429 Subjects--Topical Terms: Navigation (Aeronautics)