Ghost bears
Subtitle: exploring the biodiversity crisis
By: R. Edward Grumbine ; foreword by Michael E. Soulé.
Place of publication: Washington, D.C
Number of pages: 294
Subjects: Biological diversity conservation -- Philosophy.; Environmental ethics.
Notes: Originally presented as the author's thesis (Ph. D.--Union Institute). Includes bibliographical references (p. [249]-274) and index.

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