Commercial "Black granite" of San Diego County, California
By: by Richard A. Hoppin and L. A. Norman, Jr.
Contributors: Norman, L. A.; California. Division of Mines and Geology.
Series: Special report (California. Division of Mines and Geology) -- 3
Publisher: [California State Printing Office]
Published: 1950
Place of publication: San Francisco
Language: eng
Number of pages: 19
Subjects: Granite.; Building stones -- California -- San Diego County.