Oil and gas field property line maps of the Hilliards quadrangle, Pennsylvania
By: compiled by R.E. Sherrill
Series: Special bulletin / Pennsylvania. Bureau of Topographic and Geologic Survey -- 3; Special bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) -- 3.
Publisher: Pennsylvania Department of Internal Affairs, Bureau of Topographic and Geologic Survey
Published: 1946
Place of publication: Harrisburg, Pa
Language: eng
Subjects: Petroleum; Maps; Natural gas
Notes: Cover title.

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

Text on p. [2] of cover.