Fossil plants from the Tertiary lake beds of south-central Colorado /

Bibliographic Details

Main Author:	Knowlton, Frank Hall
Format:	Government Document Book
Language:	English
Published:	Washington, DC : Gov. Print. Off, 1923.
Series:	Professional paper // Department of the Interior, U.S. Geological Survey ; 131 G. Shorter contributions to general geology ; 1922.