@book{178371,
	author = {United Nations.},
	title = {Economic aspects of iron-ore preparation  /},
	publisher = {United Nations,},
	year = {1966.},
	series = {[United Nations. Document] ST/ECE/Steel/14},
	address = {Geneva,},
	note = {"United Nations publication. Sales no.: 66.II.E.6."}
}