Bradt, H. <br/><br/>
X-And Gamma-Ray Astronomy 

 - Dordrecht:  Reidel Publishing Company  1973 
 - 323p. ; 24 cm. 
<br/><br/> Proceedings of the 55th. Symposium of the International Astronomica Union held in Madrid, Spain, on 11-13 May, 1972 
<br/><br/><label>ISBN: </label>90-277-0303-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomía