APA (7 वां संस्करण) प्रशस्ति पत्र
Sayer, R. A. (2011). Why things matter to people: Social science, values and ethical life. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Sayer, R. Andrew. Why Things Matter to People: Social Science, Values and Ethical Life. Cambridge ; New York: Cambridge University Press, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Sayer, R. Andrew. Why Things Matter to People: Social Science, Values and Ethical Life. Cambridge University Press, 2011.
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