Pray, C. E., & Ramaswami, B. (1991). A framework for seed policy analysis in developing countries. International Food Policy Research Institute.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPray, Carl E., और Bharat Ramaswami. A Framework for Seed Policy Analysis in Developing Countries. Washington, D.C: International Food Policy Research Institute, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPray, Carl E., और Bharat Ramaswami. A Framework for Seed Policy Analysis in Developing Countries. International Food Policy Research Institute, 1991.
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