APA Citation

Heertje, A. (1977). Economics and technical change. London: Weidenfeld & Nicolson.

Trích dẫn kiểu Chicago

Heertje, Arnold. Economics and Technical Change. London: Weidenfeld & Nicolson, 1977.

MLA Citation

Heertje, Arnold. Economics and Technical Change. London: Weidenfeld & Nicolson, 1977.

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