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. 
 - 2 v. (xi, 1078 p.): 
<br/><br/> "United Nations publication. Sales no.: 67.II.B.2." 
<br/><br/><label>ISBN: </label>MBS9094 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum products-Congresses.--
<br/><br/><label>Dewey Class. No.: </label>338.4766  / St