Final programme = Programme definitif. 
 Programme definitif. 

 -- Paris :   International Astronomical Union,   198? 
 - 25 p. dupl. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Instituciones científicas - Congresos y asambleas<br/>International Astronomical Union - Congresos y asambleas
<br/><br/><label>Universal Decimal Class. No.: </label>061.22:52(063)