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 पत्रSriram, V. Top 300 Companies, Imports, Exports, Foreign Collaboration Agreements and R and D. Economic and Scientific Research Foundation, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSriram, V. Top 300 Companies, Imports, Exports, Foreign Collaboration Agreements and R and D. Economic and Scientific Research Foundation, 1979.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.