South African red data book - fishes
1977
Skelton, Paul H. (Paul Harvey) |
Endangered species
South African red data book : large mammals
1977
Skinner, J. D. (John Dawson) |
Fairall, N. |
Bothma, J. du P. |
South African red data book : reptiles and amphibians
1978
McLachlan, G. R. |
Threatened plants of southern Africa
1980
Hall, A. V. |
South African red data book - fishes
1987
Skelton, Paul H. (Paul Harvey) |
Extinct and vanishing mammals of the Western hemisphere with the marine species of all the oceans
1942
Allen, Glover Morrill |
Key forests for threatened birds in Africa
1988
Collar, N. J. |
Stuart, S. N. |
Threatened endemic mammals of the Atlantic forest region of south-east Brazil : a report of the 1986/87 field survey in eastern Bahia and Espírito Santo
1991
Oliver, William L. R. |
Santos, Ilmar B. |
The California condor, 1966-76 : a look at its past and future
1978
Wilbur, Sanford R. |