APA (7 वां संस्करण) प्रशस्ति पत्र

Mary Ann Littrell. Social Responsibility in the Global Market: Fair Trade of Cultural Products. SAGE.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Mary Ann Littrell. Social Responsibility in the Global Market: Fair Trade of Cultural Products. SAGE.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Mary Ann Littrell. Social Responsibility in the Global Market: Fair Trade of Cultural Products. SAGE.

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