Nilsen, Tor Helge  <br/><br/>
Relative slope stability and land-use planning :  selected examples from the San Francisco Bay Region, California 

 - Washington :  United States Department of the Interior ; Geological Survey,   1979 
 - viii, 96 p. :   ils., maps.  + 3 plates. 
 - (Geological survey professional paper ;  944) .
<br/><br/><label>Dewey Class. No.: </label>631.4