M. Grzimek

Flamingoes Censused in East Africa by Aerial Photography

M. Grzimek, B. Grzimek, 1960 .

Serengeti Shall Not Die

M. Grzimek, B. Grzimek, H. Lamprey, 1962 .

Census of Plains Animals in the Serengeti National Park, Tanganyika

M. Grzimek, B. Grzimek, 1960 .