Não informado. Handbook of International Trade Development Statistics. United Nations Conference on Trade and Development.
Citação do estilo Chicago (17ª ed.)Não informado. Handbook of International Trade Development Statistics. Geneva, Suíça: United Nations Conference on Trade and Development.
Citação MLA (8ª ed.)Não informado. Handbook of International Trade Development Statistics. United Nations Conference on Trade and Development.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.