Hipparcos and Tycho catalogues  vol. 4, construction of Tycho catalogue 
European Space Agency                                        
 - Netherlands  European Space Agency  1997 
 - xii, 299p. 
 - SP-1200 .
<br/><br/><label>ISBN: </label>92-9092-399-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Catalogue-Hipparcos and Tycho, Star catalogue
<br/><br/><label>Universal Decimal Class. No.: </label>083.8:524.3  / ESA