Nerfin, M. (1977). Another development: Approaches and strategies. The Dag Hammarskjold Foundation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNerfin, Marc. Another Development: Approaches and Strategies. Uppsala: The Dag Hammarskjold Foundation, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNerfin, Marc. Another Development: Approaches and Strategies. The Dag Hammarskjold Foundation, 1977.
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