@book{178167,
	author = {United Nations Interregional Conference on the Development of Petrochemical Industries in Developing Countries},
	title = {Studies in petrochemicals /},
	publisher = {United Nations,},
	year = {1966.},
	series = {[United Nations. Document] ST/CID/4},
	address = {New York :},
	note = {"United Nations publication. Sales no.: 67.II.B.2."}
}