Regulations concerning sodium mining leases and prospecting permits under act of February 25, 1920 (41 stat. 437) as amended by act of December 11, 1928 (45 stat. 1019)
Subtitle: Approved June 14, 1929
Series: Circular -- No. 1194
Publisher: U.S. G.P.O.
Published: 1929
Place of publication: Washington
Language: eng
Number of pages: 18
Subjects: Sodium