Quasi-Stellar objects 
Geoffrey Burbidge, Margaret Burbidge 
 - San Francisco  W.H.Freeman  1967 
 - viii, 235 p. 
 - Books in astronomy and astrophysics .
<br/><br/> Includes references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Quasi-Stellar
<br/><br/><label>Dewey Class. No.: </label>530  / QUA