@book{184529,
	author = {Horseman, M. N. J. and United Nations Industrial Development Organization.},
	title = {World sulphur supply and demand, 1960-1980 /},
	publisher = {United Nations,},
	year = {1973.},
	series = {Document - United Nations ; ID/76},
	address = {New York :},
	note = {At head of title: United Nations Industrial Development Organization, Vienna.}
}