Miniature environments
Subtitle: an environmental education guidebook.
Contributors: United States. Bureau of Outdoor Recreation.
Publisher: Dept. of the Interior, Bureau of Outdoor Recreation; for sale by the Supt. of Docs., U.S. Gove. Print. Off.
Published: 1972
Place of publication: Washington, D.C
Language: eng
Number of pages: 20
Subjects: Ecology -- Study and teaching.