Oil and gas sands in the north half of the Pittsburgh quadrangle, Penna
By: by M.E. Johnson
Contributors: Pennsylvania. Bureau of Topographic and Geologic Survey
Series: Bulletin. Bureau of Topographic and Geologic Survey -- no. 73; Progress report (Pennsylvania. Bureau of Topographic and Geologic Survey) -- 73.
Publisher: Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geological Survey
Published: 1923
Place of publication: [Harrisburg, Pa.]
Language: eng
Number of pages: 10
Subjects: Geology; Petroleum; Natural gas
Notes: Pa. State Docs. class. no. PY G345/4.17/8:no. 73.

Caption title.

April 20, 1923.

Includes bibliographical references.