| Douglass, E.M.; Plue, R.E., 1980. Hemolytic anemia suggestive of leptospirosis in the black rhinoceros. Journal of the American Veterinary Medicine Association 177 (9): 921-923
|
|
| Douglass, E.M., 1979. Hemolytic anemia in two black rhinos. Proceedings of the American Association of Zoo Veterinarians 1979: 116-117
|
|
|