Classification and selection of Illinois coals.

Bibliographic Details
Main Author:	Cady, Gilbert H. (Gilbert Haven), 1882-
Format:	Book
Language:	English
Published:	Urbana, [publisher not identified] ; 1935.
Series:	Bulletin (Illinois State Geological Survey) ; no. 62.
Subjects:	Coal > Analysis. Coal > Illinois.

Description
Physical Description:	354 pages : maps.
Bibliography:	Bibliographical foot-notes.