Proceedings of the nineteenth general assembly, Delhi, 1985 
edited by Jean-Pierre Swings                                    
 - Dordrecht  D. Reidel Publishing  1986 
 - xiv, 654p. 
<br/><br/><label>ISBN: </label>90-277-2321-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Astronomy and Astrophysics Thesaurus<br/>IAU General Assembly
<br/><br/><label>Universal Decimal Class. No.: </label>063:52  / IAU-19B