Earth trek
Subtitle: explore your environment
By: by Gerald Schneider
Contributors: United States. Environmental Protection Agency. Office of Public Awareness
Publisher: Environmental Protection Agency, Office of Public Awareness : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1977
Place of publication: Washington
Language: eng
Subjects: Environmental protection; Juvenile literature
Notes: "President's Environmental Youth Awards."

Issued Oct. 1977.

Includes bibliographical references.