Active galactic nuclei / 
edited by C. Hazard and S. Mitton. 
 - Cambridge, UK :  The University Press,  1979. 
 - vi, 317 p. 
<br/><br/> "Based on the proceedings of a Nato Advanced Study Institute held at the Institute of Astronomy, University of Cambridge, August 1977". - - t.p. 
<br/><br/><label>ISBN: </label>0521224942 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Quasars.<br/>Galaxies.<br/>Nuclear astrophysics.