Arny, Thomas T. <br/><br/>
Explorations :  an introduction to Astronomy / 
Thomas T. Arny, Stephen E. Schneider 
 - 6th ed. 
 - New York :  MGH ,  2009 
 - xxiii, 571 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>9780077345099  RM391.23 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy--Textbooks