(1) Elements of the petrographic study of bonding clays and of the clay substance of molding sands /

Bibliographic Details

Main Author:	Grim, Ralph E. (Ralph Early), 1902-
Other Authors:	Schubert, Carl Edward, 1899-, Rowland, Richards A.
Format:	Book
Language:	English
Published:	Urbana, Ill., [publisher not identified] ; 1940.
Series:	Report of investigations (Illinois State Geological Survey) ; no. 69.
Subjects:	Clay. Sand.