Adams, J. D. (2000). Endogeneous R%D spillovers and industrial research productivity. National Bureau of Economic Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAdams, James D. Endogeneous R%D Spillovers and Industrial Research Productivity. Cambridge: National Bureau of Economic Research, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAdams, James D. Endogeneous R%D Spillovers and Industrial Research Productivity. National Bureau of Economic Research, 2000.
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