Wolf, Edward C.
On the brink of extinction : conserving the diversity of life / Edward C. Wolf. - Washington, DC : Worldwatch Institute, 1987. - 54 p. : ill. - Worldwatch paper ; 78 .
Biological diversity conservation
On the brink of extinction : conserving the diversity of life / Edward C. Wolf. - Washington, DC : Worldwatch Institute, 1987. - 54 p. : ill. - Worldwatch paper ; 78 .
Biological diversity conservation