Game animals of Eastern Africa.

von Guggisberg, Charles Albert Walter
A pocket nature guide
Nairobi : Patwa News Agency, 1951.
Umfang/Format: 64 S., Ill. ; 17 cm.

Crocodiles : their natural history, folklore and conservation.

von Guggisberg, Charles Albert Walter
Newton Abbot : David & Charles, 1972.
Umfang/Format: X, 195 S., Ill. ; 22 cm.