Heertje, A. (1977). Economics and technical change. Weidenfeld & Nicolson.
Style de citation Chicago (17e éd.)Heertje, Arnold. Economics and Technical Change. London: Weidenfeld & Nicolson, 1977.
Style de citation MLA (9e éd.)Heertje, Arnold. Economics and Technical Change. Weidenfeld & Nicolson, 1977.
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