"Pays en voie de développement" . . "Pays en voie de développement." . "Entwicklungsländer." . . "Aree economicamente arretrate." . . "Desenvolupament econòmic." . . "Außenhandel." . . "Commerce." . . "Economic history." . . "Developing countries." . . "Història econòmica." . . "Handel zagraniczny 1945-1989 r." . . "Comerç internacional." . . "Países en desarrollo" . . . . . . . . . . . "Foreign Trade and economic development of underdeveloped countries" . . . . . . . . "[Handel zagraniczny a rozwój gospodarczy.] Foreign trade and economic development of under-developed countries ; translated by Karol Jakubowicz"@en . . . . "Foreign trade and economic development of underdeveloped countries" . "Foreign trade and economic development of underdeveloped countries"@en . . . . . . "Foreign Trade and Economic Development of Underdeveloped Countries. (Translated From the Polish by Karol Jakubowicz)"@en . . . . . . . . . . . . . . . . . . . . . "Foreign trade and economic development of under-developed countries"@en . . . . . . "Handel zagraniczny a rozwój gospodarczy"@pl . "Handel zagraniczny a rozwój gospodarczy" . . "Wirtschaftsentwicklung." . . "Commercio internazionale." . . "Kraje rozwijające się gospodarka 1945-1989 r." . . . . "Développement économique." . . "Condicions econòmiques." . . "Països en vies de desenvolupament" . . "Països en vies de desenvolupament." . "Cooperazione economica internazionale." . .