Upper Devonian marine-nonmarine transition, southern Pennsylvania,

Saved in:
Bibliographic Details
Author / Creator:Walker, Roger G
Imprint:Harrisburg [Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey] 1972.
Description:vi, 25 p. illus. 23 cm.
Language:English
Series:General geology report G62
Subject:
Format: Print Book
URL for this record:http://pi.lib.uchicago.edu/1001/cat/bib/104510
Hidden Bibliographic Details
Notes:Part of illustrative matter in pocket.
"Pennsylvania Geological Survey fourth series."
Bibliography: p. 25.