"Agriculture Pays en voie de développement." . . "Energiebeleid." . . "Landwirtschaft." . . "Pays en voie de développement Politique économique." . . . . "Elektrizität." . . "Gazdaságpolitika fejlődő országok." . . "Ontwikkelingslanden." . . "Ontwikkelingslanden" . "Underdeveloped areas, Agriculture." . . "Energiebedarf." . . "Agricultura." . . "Recursos energéticos Paises en desarrollo." . . "Platteland." . . "Tecnología" . . "Ontwikkelingslanden." . . "Developing countries" . . "Underdeveloped areas, Income." . . "Energieverbrauch." . . "Energiebronnen." . . "Pays en voie de développement" . . "Agricultura Países en desarrollo." . . "Fonts d'energia." . . "Indústria energètica." . . "Afrika." . . "Poole, A." . . "Underdeveloped areas, Economic policy." . . . . . . . . . . . . . "Energy and Agriculture in the Third World" . . "Energy and agriculture in the third world"@en . "Energy and agriculture in the third world" . "Energy and agriculture in the Third World" . "Energy and agriculture in the 3. world : a report to the Energy Policy Project of the Ford Foundation" . . . . . . . . . . . . . "Energy and agriculture in the Third World : a report to the energy policy project of the Ford Foundation" . . . . . . . . . . . . "Ford foundation. Energy policy project" . . . . . . . . . . . . . . . . . . . . . . . "Energy and agriculture in the third world, with the collaboration of Alan Poole"@en . "Energy and agriculture in the Third World : a report to the Energy Policy Project of the Ford Foundation" . . . . . . . . . . . "Mezőgazdaság fejlődő országok." . . "Entwicklungsländer." . . "Països en vies de desenvolupament." . . "Revenu Pays en voie de développement." . . "China." . . "Lateinamerika." . .