Active galactic nuclei : based on the proceedings of a NATO advanced study institute held at the Institute of Astronomy, University of Cambridge, August 1977 / edited by C. Hazard and S. Mitton. (Cambridge astrophysics series ; [1])
Active galactic nuclei : based on the proceedings of a NATO advanced study institute held at the Institute of Astronomy, University of Cambridge, August 1977 / edited by C. Hazard and S. Mitton.