Deane, N.N.; Feely, J.M. 1974. The development of a South African game ranch. In: Geist, V.; Walther, F., The behaviour of ungulates and its relation to management. Morges, IUCN (Publications New series no. 24). vol. 2, pp. 882-88, 6 tables.
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Guggisberg, C.A.W. 1963. The Wilderness is Free. London, Bailey Bros. and Swinfen. pp. 1-158.
Lodge, A. 1994. Lewa Downs, Ngare Sergoi Wildlife Project Update. Proceedings of the 20th National Conference of the American Association of Zoo Keeper's Inc. Atlanta, Georgia, October 10-14 1993: 35-36, 1 table with wildlife counts.
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Conference participants 1935. All-India Conference for the Preservation of Wild Life. Indian Forester 61 (4): 215-221.
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Shebbeare, E.O. 1935. Talk on Preservation of Wild Life. Indian Forester 61 (8): 551-555.