APA (7 वां संस्करण) प्रशस्ति पत्र

Sriram, V. (1979). Top 300 companies, imports, exports, foreign collaboration agreements and R and D. Economic and Scientific Research Foundation.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Sriram, V. Top 300 Companies, Imports, Exports, Foreign Collaboration Agreements and R and D. Economic and Scientific Research Foundation, 1979.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Sriram, V. Top 300 Companies, Imports, Exports, Foreign Collaboration Agreements and R and D. Economic and Scientific Research Foundation, 1979.

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