Byerlee, D., & Alex, G. E. (1998). Strengthening national agricultural research systems: Policy issues and good practice. World Bank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रByerlee, Derek, और Gary E. Alex. Strengthening National Agricultural Research Systems: Policy Issues and Good Practice. Washington, DC: World Bank, 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रByerlee, Derek, और Gary E. Alex. Strengthening National Agricultural Research Systems: Policy Issues and Good Practice. World Bank, 1998.
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