Hartmann, William K <br/><br/>
Astrononomy : the cosmic journey (1987 edition) 
By William K. Hgartmann 
 - 1987  
 - Belmont  Wadsworth Publishing Company  1987 
 - xxiii, 548 pages : illustrations 
<br/><br/><label>ISBN: </label>0534079385 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ASTRONOMY
<br/><br/><label>LC Class. No.: </label>QB 45 Har