Pananides, Nicholas A. <br/><br/>
Introductory astronomy / 
Nicholas A. Pananides, Thomas Arny ; [Illustrator : Phil Carver & Friends, Inc., Kristin Kramer.]. 
 - 2nd ed. 
 - Reading, Mass. :  Addison-Wesley Publ. Co.,  1979. 
 - xxiii, 388 p. :  [12] leaves of plates : ill. ;  24 cm. 
 - Addison-Wesley series in physics .
 - 520 .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0201056747 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Աստղագիտություն
<br/><br/><label>Dewey Class. No.: </label>520