@book{20063,
	author = {United Nations Conference on Trade and Development (Geneva)},
	title = {Operation and effects of the generalized system of preferences},
	publisher = {United Nations},
	year = {Ca. 1984},
	address = {New York},
	note = {Seventh and eighth review selected studies submitted to the special committee on preferences at its eleventh sesssion, Geneva, 3-11 May 1982 and its twelfth session, Geneva, 24 April-4 May 1984}
}