Charles,Philip A <br/><br/>
Exploring the x-ray universe 
Philip A Charles  and Frederick D Seward 
 - Cambridge  Cambridge University Press  1995 
 - xvi, 398p. 
<br/><br/><label>ISBN: </label>0-521-43712-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>X-ray astronomy
<br/><br/><label>Universal Decimal Class. No.: </label>52-73  / CHA