@book{1972,
	author = {Chalmin, Philippe (ed.) and UNCTAD Secretariat. and United Nations Conference on Trade and Development. and PRAGER, Charles (ed.)},
	title = {World commodity survey 2000- 2001 :},
	publisher = {United Nations,},
	year = {2001.},
	address = {Geneva :},
	edition = {Infocomm ed.},
	note = {Includes indexIand a questionnaire.}
}