Studies in petrochemicals 
/ Presented at the United Nations interregional conference on the development of petrochemical industries in developing countries Teheran, Iran, 16-30 November, 1964 
 - New York:   United Nations,   1966 
 - xi, 565p. 
<br/><br/> Vol. 1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conference
<br/><br/><label>Universal Decimal Class. No.: </label>665.59(063)  / K6.1