X- and gamma-ray astronomy / 
Ed. by H. Bradt, R. Giacconi. 
 - Dordrecht, Holland ;  Boston :  D. Reidel,  1973. 
 - x, 323 p. :  ill. ;  25 cm. 
<br/><br/> "Symposium No. 55 held in Madrid, Spain, 11-13 May 1972."  Sponsored by the International Astronomical Union. 
<br/><br/>Includes bibliogr. references 
<br/><br/><label>ISBN: </label>9027703035 
<br/><br/><label>Subjects--Topical Terms: </label><br/>X-ray astronomy--Congresses