(1999). Regional development profile of Ewaso Ng'iro North River Basin in Kenya. United Nations Centre for Regional Development.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRegional Development Profile of Ewaso Ng'iro North River Basin in Kenya. Nagoya: United Nations Centre for Regional Development, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRegional Development Profile of Ewaso Ng'iro North River Basin in Kenya. United Nations Centre for Regional Development, 1999.
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