APA (7 वां संस्करण) प्रशस्ति पत्र

Graafland, J. (2022). Ethics and Economics: An Introduction to Free Markets, Equality and Happiness. Taylor & Francis.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Graafland, Johan. Ethics and Economics: An Introduction to Free Markets, Equality and Happiness. Oxford: Taylor & Francis, 2022.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Graafland, Johan. Ethics and Economics: An Introduction to Free Markets, Equality and Happiness. Taylor & Francis, 2022.

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