共 18 条
[3]
CLOUGH G, 1970, East African Wildlife Journal, V8, P19
[4]
FOSBROOKE HA, 1972, NGORONGORO 8TH WONDE
[5]
Goddard J., 1967, East African Wildlife Journal, V5, P133
[6]
GODDARD J, 1968, East African Wildlife Journal, V6, P1
[7]
Guggisberg C. A. W., 1966, SOS RHINO
[8]
HERLOCKER D, 1972, 19 CAN WILDL SERV RE
[9]
JARMAN M V, 1973, East African Wildlife Journal, V11, P75
[10]
KIWIA HYD, 1983, THESIS U DAR ES SALA