Fossil spores of the Alleghenian coals in Indiana.

Bibliographic Details
Main Author:	Guennel, Gottfried Kurt, 1920-
Format:	Book
Language:	English
Published:	Bloomington, [publisher not identified] ; 1952.
Series:	Report of progress (Indiana. Geological Survey) ; no. 4.
Subjects:	Paleobotany > Indiana. Plant spores. Coal > Indiana.

Description
Physical Description:	40 pages : illustrations
Bibliography:	"References": page 40.