APA引文

Nayyar, G. (2009). The Demand for Services in India. A Mirror Image of Engel's Law for Food? Department of Economics (University of Oxford).

Chicago Style (17th ed.) Citation

Nayyar, G. The Demand for Services in India. A Mirror Image of Engel's Law for Food? Department of Economics (University of Oxford), 2009.

MLA引文

Nayyar, G. The Demand for Services in India. A Mirror Image of Engel's Law for Food? Department of Economics (University of Oxford), 2009.

警告：這些引文格式不一定是100％准確.