DiSilvestro, Roger L

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disilvestrorogerl

The African elephant

twilight in Eden
  • DiSilvestro, Roger L
1991

The endangered kingdom

the struggle to save America's wildlife
  • DiSilvestro, Roger L
1989
Examines the philosophy, the methodology, and the successes and failures of our wildlife management policies.

Audubon perspectives

fight for survival : a companion to the Audubon television specials
  • DiSilvestro, Roger L
1990
Reports nature's battle to preserve endangered species and the earth from the influence of man.

Audubon

natural priorities
  • DiSilvestro, Roger L
1994
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