HARVARD BUSINESS REVIEW. (1977). R & D MANAGEMENT: PART III. HARVARD BUS. SCHOOL.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHARVARD BUSINESS REVIEW. R & D MANAGEMENT: PART III. USA: HARVARD BUS. SCHOOL, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHARVARD BUSINESS REVIEW. R & D MANAGEMENT: PART III. HARVARD BUS. SCHOOL, 1977.
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