Watson, R.
Watson, R.M.; Graham, A.D.; Parker, I.C.S. 1969. A census of the large mammals of Loliondo Controlled Area, Northern Tanzania. East African Wildlife Journal 7: 43-59, figs. 1-4, tables 1-6, map 1.
Watson, R.M.; Turner, M.I.M. 1965. A count of the large mammals of Lake Manyara National Park: results and discussion. East African Wildlife Journal 3: 95-98, figs. 1-2, table 1.






