Phosphatic rock localities in California
By: by Albert E. Roberts.
Series: Open-file report / United States Department of the Interior, Geological Survey -- 81-260; Open-file report (United States. Geological Survey) -- 81-260.
Publisher: U.S. Geological Survey
Published: 1981
Place of publication: [Menlo Park, Calif.]
Language: eng
Number of pages: 76
Subjects: Phosphate rock -- California.
Notes: Cover title.

Two maps on folded sheets in pocket.

Bibliography: leaves 2-11.