International training program for Ministry of Agriculture, Arab Republic of Egypt
1982
Conservation areas
Maasailand ecology : pastoralist development and wildlife conservation in Ngorongoro, Tanzania
1991
Homewood, K. M. |
Rodger, W. A. |
An ecological survey and development plan for the Empakaai Crater ecosystem, Ngrongoro conservation area, Tanzania
1975
Frame, George W. |
Frame, Lory Herbison |
Spillett, J. Juan |
Serengeti shall not die
1974
Grzimek, Bernhard |
Grzimek, Michael |