TY - BOOK ED - United Nations. ED - United Nations Centre for Trade Facilitation and Electronic Business . TI - Recommendation and guidelines on establishing a single window to enh ance the efficient exchange of information between trade and government : : recommendation no. 33 / SN - 9211169240 PY - 2005/// CY - New York : PB - United Nations, KW - International trade KW - Communication in international trade N1 - "ECE/TRADE/352"--T.p. verso; "United Nations publication. Sales no. E.05.II.E.9 "--T.p. verso; Includes bibliographical references ER -