1.		Manual on statistics of international trade in services [[Policopiado]] / United Nations [et al.] Data Publicação: 2002 Co col. autor sec.: United Nations Comunidades Europeias. Comissão Europeia Fundo Monetário Internacional OCDE. [s.n] United Nations Conference on Trade and Development World Trade Organization
2.		Handbook on the Operation and Organization of a statistical agency / United Nations Statistics Division Col.autor: United Nations