Proceedings of the Seventeenth General Assembly, Montreal, 1979 
edited by Patrick A. Wayman.. 
 - Dordrecht :  Reidel,  1980. 
 - x,526 p. :  1port ;  26 cm. 
 - Transactions of the International Astronomical Union  v.17B. .
<br/><br/> At head of title: International Astronomical Union 
<br/><br/><br/>eng fre 
<br/><br/><label>ISBN: </label>9027711593 
<br/><br/><label>Subjects--Corporate Names: </label><br/>International Astronomical Union.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy--Societies, etc.