Traps for saving gas at oil wells
By: by W. R. Hamilton.
Series: [U. S.]  Bureau of mines.  Technical paper 209.  Petroleum technology 49
Publisher: Govt. print. off.
Published: 1919
Place of publication: Washington
Language: eng
Number of pages: 34
Subjects: Petroleum.; Natural gas.
Notes: "Publications on petroleum technology": p. 32-34.
At head of title: ... Department of the interior.  Franklin K. Lane, secretary.  Bureau of mines.  Van. H. Manning, director.
First edition.  February, 1919.  cf. verso of t.-p.