Proceeding on Gamma ray astronomy 
by  
 - London  The Royal society       1981 
 - 701p.  cm. 
<br/><br/><label>Standard No.: </label>72160 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Dewey Class. No.: </label>B9:95p1,N81, M1