Arny, Thomas T Explorations : an introduction to astronomy Thomas T. Arny, Stephen E. Schneider - 6th ed - Boston McGraw-Hill Higher Education 2008 - xxix, 594 p. : col. ill. ; 29 cm Includes index ISBN: 9780077233983 Subjects--Topical Terms: Astronomy -- Textbooks Dewey Class. No.: 520 ARN