Reports on astronomy 
edited by Derek McNally 
 - Dordrecht  Kluwer Academic  1991 
 - viii, 619p. 
 - Transactions of the International Astronomical Union; v. X .
<br/><br/><label>ISBN: </label>0-7923-1172-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Astronomy and Astrophysics Thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>063:52  / IAU-T21A