Part I. Director's biennial report to the governor of Oklahoma, 1912
Subtitle: Part II. Mineral production of Oklahoma from 1901 to 1911.
By: By D. W. Ohern.
Contributors: Ohern, Daniel Webster, 1870-
Series: Oklahoma Geological Survey Bulletin -- no. 15; Bulletin (Oklahoma Geological Survey) -- no. 15
Published: 1912
Place of publication: Norman
Subjects: Geology -- Oklahoma.; Mines and mineral resources -- Oklahoma.