Primo libro de Interlingua 
Academia pro interlingua 
 - London  Kegan Paul  1931 
 - vii, 168p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dictionaries<br/>NASA Thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>038:41  / ACA