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Displaying items 191-200

39 - Cultural anthropology. Ethnography. Customs. Manners. Traditions. Way of life (8)
502 - The environment and its protection (8)
543 - Analytical chemistry (8)
616.3 - Pathology of the digestive system. Complaints of the alimentary canal (8)
620 - Materials testing. Commercial materials. Power stations. Economics of energy (8)
621 - Mechanical engineering in general. Nuclear technology. Electrical engineering. Machinery (8)
628 - Public health engineering. Water. Sanitation. Illuminating engineering (8)
94 - General history (8)
Aferrament (Psicologia) (8)
Arquitectura--Ensenyament (8)