| Pienaar, U. de V., 1970. The recolonisation history of the square-lipped (white) rhinoceros Ceratotherium simum simum (Burchell) in the Kruger National Park (October 1961 - November 1969). Koedoe 13: 157-169, pls. 1-4, figs. 1-4
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| Pienaar, U. de V., 1963. The large mammals of the Kruger National Park: their distribution and present-day status. Koedoe 6: 1-37
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