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Armson, Rosalind (1978). Copper and aluminium: a data base for a physical input/output study. ERG Report 21; Energy Research Group, The Open University, Milton Keynes.
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Armson, Rosalind (1978). Copper and aluminium: a data base for a physical input/output study. ERG Report 21; Energy Research Group, The Open University, Milton Keynes.