Planetary nebulae 
edited by Silvia Torres-Peimbert 
 - Dordrecht  Kluwer Academic  1989 
 - xx, 607p. 
 - IAU Symposium; no. 131 .
<br/><br/><label>ISBN: </label>0-7923- 0003- 3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics thesaurus<br/>Planetary nebulae
<br/><br/><label>Universal Decimal Class. No.: </label>082.2:52  / IAU-S131