ZEILIK, Michael Introductory astronomy and astrophysics / [by] Michael Zeilik, Elske V.P.Smith - 2nd ed. - Philadelphia Saunders college pub. 1987 - vii, 503 p. Includes appendixes and index. ISBN: 30044995 Subjects--Topical Terms: AstronomyAstrophysics Dewey Class. No.: 520 / ZEI