Books by Richard H. Jahns:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Jahns, Richard H. (Richard Henry), 1915-1983: Gem- and lithium-bearing pegmatites of the Pala district, San Diego County, California (State of Calif., Dept. of Natural Resources, Division of Mines, 1951), also by Lauren A. Wright (page images at HathiTrust)- Jahns, Richard H. (Richard Henry), 1915-1983: Geology of southern California (San Francisco, 1954), also by California. Division of Mines and Geology (page images at HathiTrust)
- Jahns, Richard H. (Richard Henry), 1915-1983: Geology of the San Dieguito pyrophyllite area : San Diego County, California (California State Print. Office, 1950), also by John F. Lance (page images at HathiTrust)
- Jahns, Richard H. (Richard Henry), 1915-1983: Geology of the San Dieguito pyrophyllite area, San Diego County, California (s.n.], 1950), also by John F. Lance and California. Division of Mines (page images at HathiTrust)
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