Lusigi, W. J. (1978). Planning human activities on protected natural ecosystems: The conservation unit approach to the planning and management of national parks and reserves in Kenya, based on the Nairobi National Park Ecosystem. J. Cramer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lusigi, Walter Jami. Planning Human Activities on Protected Natural Ecosystems: The Conservation Unit Approach to the Planning and Management of National Parks and Reserves in Kenya, Based on the Nairobi National Park Ecosystem. Vaduz: J. Cramer, 1978.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lusigi, Walter Jami. Planning Human Activities on Protected Natural Ecosystems: The Conservation Unit Approach to the Planning and Management of National Parks and Reserves in Kenya, Based on the Nairobi National Park Ecosystem. J. Cramer, 1978.