Hillside materials and slopes of the San Francisco Bay region, California /
Ellen, Stephen D.
Wentworth, Carl M.
Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey Information Services,
1995.
Issued in folder with 7 folded col. maps.
Includes bibliographical references (p. 211-215).
Slopes (Physical geography)