Palynostratigraphy of the lower and middle Pennsylvanian coals of Iowa /

Bibliographic Details
Main Author:	Ravn, Robert L.
Format:	Book
Language:	English
Published:	Iowa City, Iowa (123 N. Capitol St., Iowa City 52242) : Iowa Geological Survey, 1986.
Series:	Iowa Geological Survey technical paper ; no. 7.
Subjects:	Palynology > Iowa. Paleobotany > Pennsylvanian. Coal > Geology > Iowa.

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