Sources of American potash
By: R.O.E. Davis
Series: Department circular / United States Department of Agriculture -- 61; Department circular (United States. Dept. of Agriculture) -- 61.
Publisher: U.S. Dept. of Agriculture
Published: 1919
Place of publication: Washington, D.C
Language: eng
Subjects: Potash deposits
Notes: Cover title.

Contribution from the Bureau of Soils.