Abstracts of papers :  First Chemical Congress of the North American Continent, Mexico City, Mexico, November 30-December 5, 1975 

 - 1 volumen (en varias paginaciones) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Química--Congresos
<br/><br/><label>LC Class. No.: </label>QD1  / C44 1975