ROBSON(Ian) <br/><br/>
Active galactic nuclei. 

 - New York  John Wiley  1995 
 - Pbk.xxiv p. + 350 
 - Wiley-Praxis Series in Astronomy and Astrophysics. .
<br/><br/><label>ISBN: </label>0-471-96050-0 
<br/><br/><label>Source: </label>678