Walker, C.H. 1991. Profile: Dr Ian Player. REF Journal 5: 2-3, fig. 1.
Walker, C.H. 1990. Moving to save the black rhino. Custos 18 (12): 24-26, figs. 1-3 (Afrikaans, pp. 28-29).
Walker, C.H. 1989. The role of non-governmental organisations in black rhinoceros Diceros bicornis conservation in Africa (abstract). Koedoe 32 (2): 87-88, table 1.
Walker, C.H. 1988. Flight of the unicorn.. REF Journal 1: 24-25, fig. 1.
Hall-Martin, A.; Walker, C.H.; Bothma, J. du P. 1988. Kaokoveld: the last wilderness. Johannesburg, Southern Book Publishers. pp. i-xii, 1-145.
Walker, C.H. 1986. In search of a unicorn. Quagga 13: 6-8.
Walker, C.H. 1986. The rhino in fairy tales. Poolife 1986 March: 36-37, figs. 1-2.
Walker, C.H. 1984. Forgotten wilderness. Quagga 7: 23-24.
Falconer, H.; Walker, C.H. 1859. Descriptive catalogue of the fossil remains of vertebrata from the Sewalik Hills, the Nerbudda, Perim Island, &c. in the museum of the Asiatic society of Bengal. Calcutta, C.B.Lewis.
Walker, C.H. 1843. A catalogue of the mammalia of Assam. Calcutta Journal of Natural History 3: 265-268.






