Stroobant, P. <br/><br/>
Les observatoires astronomiques et les astronomes  supplement 
P. Stroobant…[et al.]                                          
 - Bruxells  Duculot  1936 
 - 105p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Observatories
<br/><br/><label>Universal Decimal Class. No.: </label>520.1  / STR