Blume, S. S. (1987). Post-graduate education in the 1980s. Organisation for Economic Cooperation and Development.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBlume, Stuart S. Post-graduate Education in the 1980s. Paris: Organisation for Economic Cooperation and Development, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBlume, Stuart S. Post-graduate Education in the 1980s. Organisation for Economic Cooperation and Development, 1987.
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