The Beatty, J. Kelly. Chaikin, Andrew 1956- text Cambridge [England] New York Cambridge, Mass Cambridge University Press Sky Pub. Corp. 1990 3rd ed. monographic viii, 326 p. : ill. (some col.) ; 29 cm. edited by J. Kelly Beatty, Andrew Chaikin ; introduction by Carl Sagan. Includes bibliographical references (p. [299]-304) and index. Astronomy Solar system QB501 .N47 1990 523.2 0521361621 0521369657 (pbk.) 0933346557 (Sky Pub. Corp.) 0933346565 (Sky Pub. Corp. : pbk.) 89038040 UOEL 000 20170725153213.0 3873163