Discover the dunes
Subtitle: teacher's guide
Contributors: United States. National Park Service
Publisher: National Park Service, Dept. of the Interior; For sale by the Supt. of Docs., U.S. G.P.O.
Published: 1982
Place of publication: [Washington, D.C.]
Language: eng
Number of pages: 16
Subjects: Sand dunes -- Indiana
Notes: Cover title