International Union of American Republics <br/><br/>
Monthly bulletin of the international bureu of the american republics  tomos de april, may, ogust, october, november 
International Union of American Republics 
 - v  Incluye; (tablas)  23 cm 
 - Monthly bulletin of the international bureu of the american republics  5 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tecnología (ciencias aplicadas)
<br/><br/><label>Dewey Class. No.: </label>600  / INT MON 1906