The Annville, Myerstown and Hershey formations of Pennsylvania.
Series: Bulletin G,; 31
Publisher: Dept. of Internal Affairs, Topographic and Geologic Survey
Published: 1959
Place of publication: [Harrisburg]
Language: eng
Number of pages: 47
Subjects: Geology -- Pennsylvania.; Geology, Stratigraphic.
Notes: Bibliography: p. 46-47.
At head of title: Pennsylvania Geological Survey, 4th ser.