Extinction : the causes and consequences of the disappearance of species
1982
Ehrlich, Paul R. |
Ehrlich, Anne H. |
Endangered species
Rare and endangered mammals of Chile
1974
Taber, Richard T. |
Miller, Sterling |
Rottmann, Jürgen |
Gerald Durrell's army
1992
Whitley, Edward |
Vigilancia ecológica de la degradación de las tierras y desertificación en el Perú : monitoreo ecológico, Huallaga Central y Bajo Mayo
1989
Zamora-Jimeno, Carlos |
Vanishing wildlife of North America
1974
Allen, Thomas B. |
Forgotten fauna : the rare, endangered and protected invertebrates of New Zealand
1990
Meads, Mike |
The great Indian bustard : final report
1989
Rahmani, Asad R. |
California's wild heritage : threatened and endangered animals in the Golden State
1990
Steinhart, Peter |
Bowman, Robert I. |