Bilen, O. (1986). Improved efficiency in the management and mobilization of financial resources for water sector development projects. United Nations.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBilen, Ozden. Improved Efficiency in the Management and Mobilization of Financial Resources for Water Sector Development Projects. New York: United Nations, 1986.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBilen, Ozden. Improved Efficiency in the Management and Mobilization of Financial Resources for Water Sector Development Projects. United Nations, 1986.
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