The preservation of natural diversity: a survey and recommendations
Subtitle: final report ; prepared for U.S. Dept. of the Interior
By: by the Nature Conservancy.
Contributors: United States. Dept. of the Interior.
Publisher: The Conservancy
Place of publication: [s.l.]
Number of pages: 313
Subjects: Natural areas -- United States.; Biogeography.; Ecology -- Research -- United States.
Notes: "Contract no. CX0001-5-0110."

"Executive summary" in pocket.

Includes bibliographical references and index.