Geyling, Franz T., 1926- Introduction to orbital mechanics / Franz T. Geyling [and] Howard Robert Westerman - California : Addison-Wesley Pub., c1971 - xv, 349 p. : ill. ; 24 cm. - Addison-Wesley aerospace series . Includes index ISBN: USD 15.00 Subjects--Topical Terms: Orbital mechanics Dewey Class. No.: 521.1