| Berger, J.; Cunningham, C., 1994. Phenotypic alterations, evolutionary significant structures, and rhino conservation. Conservation Biology 8 (3): 833-840, figs. 1-3
|
|
| Berger, J., 1993. Disassociations between black rhinoceros mothers and young calves: ecologically variable or, as yet, undetected behaviour?. African Journal of Ecology 31: 261-264, fig. 1
|
|
|