Present and prospective supply of natural gas available in Pennsylvania
By: by Samuel S. Wyer, chief Natural gas conservation, U.S. Fuel administration, with attached Smithsonian institution Bulletin no. 102, part 7, on Natural gas: its production, service and conservation, December 28, 1918
Publisher: Sears & Simpson Co.
Published: 1918
Place of publication: Columbis, Ohio
Language: eng
Number of pages: 94
Subjects: Natural gas
Notes: Plates printed on both sides.

Found also in "Supply and conservation of natural gas in the state of Pennsylvania" ... Harrisburg, 1919 (Pennsylvania. Public service commission)