Pumice, pumicite, and volcanic cinders in California,
by Charles W. Chesterman, and Technology of pumice, pumicite, and volcanic cinders, by F. Sommer Schmidt.
- San Francisco, 1956.
- 119 p. illus, maps (part fold., part col.) 29 cm.
- California. Division of Mines. Bulletin, 174 .
- Bulletin (California. Division of Mines) ; no. 174. .