Nayyar, G. (2009). The Demand for Services in India. A Mirror Image of Engel's Law for Food? Department of Economics (University of Oxford).
Παραπομπή σε μορφή Chicago (17η εκδ.)Nayyar, G. The Demand for Services in India. A Mirror Image of Engel's Law for Food? Department of Economics (University of Oxford), 2009.
Παραπομπή σε μορφή MLA (9th εκδ.)Nayyar, G. The Demand for Services in India. A Mirror Image of Engel's Law for Food? Department of Economics (University of Oxford), 2009.
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