Rocks of the McCalls Ferry quadrangle, Penna
By: by Anna I. Jonas
Contributors: Pennsylvania. Bureau of Topographic and Geologic Survey
Series: Bulletin -- no. 62
Publisher: Bureau of Topographic and Geological Survey
Published: 1923
Place of publication: [Harrisburg]
Language: eng
Subjects: Structural Geology; Rocks
Other titles: McCalls Ferry quadrangle, Penna
Notes: Pa. State Docs. class. no. PY G345/4.17/8:no. 62.

At head of title: Commonwealth of Pennsylvania, Department of Internal Affairs, Bureau of Topographic and Geological Survey.

February 3, 1923.