The clays of the United States east of the Mississippi river /

Bibliographic Details

Main Author:	Ries, Heinrich, 1871-1951
Format:	Government Document Book
Language:	English
Published:	Washington : Govt. print. off, 1903.
Series:	United States. Geological Survey. Professional paper ; no. 11. Series A, Economic geology, 21; B, Descriptive geology, 24.
Subjects:	Clay.