Williams, P. J. (1992). Women, trees, and forests in Africa: A resource guide. Environment Liaison Centre International.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilliams, Paula J. Women, Trees, and Forests in Africa: A Resource Guide. Nairobi, Kenya: Environment Liaison Centre International, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWilliams, Paula J. Women, Trees, and Forests in Africa: A Resource Guide. Environment Liaison Centre International, 1992.
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