Fossil forests of the Yellowstone national park. : Department of the interior. Office of the secretary.

Bibliographic Details
Main Author:	Knowlton, Frank Hall, 1860-1926
Format:	Book
Language:	English
Published:	[Washington] : [Govt. Print. Off.], 1914.
Subjects:	Petrified forests. Paleobotany > Yellowstone National Park.

Description
Item Description:	By F. H. Knowlton, United States Geological Survey.
Physical Description:	31 pages including illustrations, map, diagram ; 24 cm.