APA引文

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引文

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

警告：這些引文格式不一定是100％准確.