"Navigator RL: 3-5. IL: 4-7"--Back cover. Includes bibliographical references (page 32) and index.
Summary:
"Describes threats to the biodiversity of the Great Lakes and steps that are being taken to prevent further damage. Includes fun facts and a "Look at That!" special feature"-- Provided by publisher.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.