Acker, Agnes <br/><br/>
Strasbourg-eso catalogue of galactic planetary nebulae  pt. II 
Agnes Acker…[et al.]                                                  
 - Garching  European Southern Observatory  1992 
 - 747p. 
<br/><br/><label>ISBN: </label>3-923524-41-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Catalogue-Planetary nebulae<br/>Planetary Nebulae-Catalogue
<br/><br/><label>Universal Decimal Class. No.: </label>083.8:524.5  / ACK-II