Le Moyen Age pour quoi faire? - Delatouche, Raymond; Gimpel, Jean.; Pernoud, Régine (Paris Stock, 1986)
Keywords: Appropriate technology -- Developing countries; Comparative civilization; Economic history -- Medieval, 500-1500; Technology -- Social aspects&delete& -- History; 940.1 <08> -- Geschiedenis van Europa: Middeleeuwen:--(ca.375-1492)--Verzamelwerken. Reeksen; Developing countries -- Economic conditions