Active galactic nuclei 
edited by D. E. Osterbrock and J. S. Miller                                             
 - Dordrecht  Kluwer Academic  1989 
 - xxxii, 592p. 
 - IAU Symposium; no. 134 .
<br/><br/><label>ISBN: </label>0-7923-0257-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Active galactic nuclei<br/>Astronomy and Astrophysics thesaurus<br/>Galactic nuclei
<br/><br/><label>Universal Decimal Class. No.: </label>082.2:52  / IAU-S134