Endangered species - Benson, Sonia; Nagel, Rob. Endangered species
v. 1. Mammals -- v. 2. Arachnids, birds, crustaceans, insects, and mollusks -- v. 3. Amphibians, fish, plants, and reptiles.
Rev. ed. of: Endangered species / Rob Nagel. c1999.
Includes bibliographical references (xli-l) and index.
Keywords: Endangered species --Juvenile literature; Endangered species --Encyclopedias.