"Commerce." . . "Europe orientale." . . . . . "Trends, policies and prospects in trade among countries having different economic and social systems : selected studies" . "Trends, policies and prospects in trade among countries having different economic and social systems : selected studies"@en . "Publication internationale"@en . . . . . . "Trends, policies, and prospects in trade among countries having different economic and social systems : selected studies" . . . . . . . . . . . . . . . . . "Trends, policies and prospects in trade among countries having different economic and social systems. Selected studies"@en . . . . . . . . . . . . . . . . . . . . . . . . . "Trends, Policies and Prospects in Trade Among Countries Having Different Economic and Social Systems - Selected Studies" . . . . . . . . . "UNCTAD." . . "GERMAN DEMOCRATIC REPUBLIC." . . "Ontwikkelingslanden." . . "BULGARIA." . . . . "Pays de l'Est." . . "ECONOMIC COOPERATION." . . "Pays en développement." . . "Wirtschaftsbeziehungen." . . "TRADE STATISTICS." . . "United Nations Conference on Trade and Development." . . "HUNGARY." . . "Vergleich." . . "FOREIGN TRADE." . . "United Nations Conference on Trade and Development (Geneva)" . . "Developing countries" . . "Developing countries." . "Economische betrekkingen." . . "STATISTICAL DATA." . . "MOROCCO." . . "ECONOMIC RELATIONS." . . "EAST-SOUTH TRADE." . . "NIGERIA." . . "Osteuropa." . . "Europe, Eastern" . . "Europe, Eastern." . "International economic relations." . . "Commerce international." . . "COMECON-landen." . . "CZECHOSLOVAKIA." . . "USSR." . . "Entwicklungsländer." . . "United Nations Conference on Trade" . . "INDIA." . . "EASTERN EUROPE." . . "ARGENTINA." . . "Données statistiques." . . "Wirtschaftssystem." . . "Handel." . .