TY  - BOOK
AU  - Helley, Edward J. 
TI  - Flatland deposits their geology and engineering properties, and their importance to comprehensive planning: selected exemples from the San Francisco Bay region, California
T2  - (Geological survey professional paper
U1  - 551.3 20
PY  - 1979///
CY  - Washington
PB  - United States Department of the Interior ; Geological Survey, 
ER  -