Oil and gas field atlas of the Butler quadrangle, Pennsylvania
By: compiled by William S. Lytle and Lillian A. Heeren
Series: Special bulletin - Topographic and Geologic Survey -- 7; Special bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) -- 7.
Publisher: Pennsylvania Department of Internal Affairs, Topographic and Geologic Survey
Published: 1955
Place of publication: Harrisburg
Language: eng
Number of pages: 26
Subjects: Oil fields; Natural gas
Notes: Cover title.

At head of title: Pennsylvania Geological Survey, 4th series.

Text on p. [2] of cover.