Viljoen, Jozua Jakobus; Ganswindt, Andre; Palme, Rupert; Reynecke, Hendrik C.; Du Toit, Johan T.; Langbauer, William Richard(South African National Parks, 2008)
Grotto, Chloe E.; Wolf, Tanja Esther; Berkeley, Elizabeth; Lee, Stephen; Ganswindt, Andre(NISC (Pty) Ltd and Informa UK Limited (trading as Taylor and Francis Group), 2020)