Heek, Andre'. <br/><br/>
International directory of professional astronomical institutions :  together with related items of interest = Repertoire international des institutions astronomiques professionnelles : ainsi que d'autres entrees d'interet general / 
 Repertoire international des institutions astronomiques professionnelles : ainsi que d'autres entrees d'interet general. 
Andre Heck. 
 - Strasbourg :  Observatorie Astronomique,  1988. 
 - 492 p. ;  21 cm. 
 - Historical Conservation Society  xl .
 - Historical Conservation Society .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Merchant marine--History--Spain
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Spain--Colonies--Philippine Islands.<br/>Spain--Communication--Spain.