@article{196757, note = {Relief shown by contours and spot heights.}, author = {Graymer, R. W.}, url = {http://library.usi.edu/record/196757}, title = {Preliminary geologic map of the Niles 7.5-minute quadrangle, Alameda County, California [microform] /}, publisher = {The Survey ;}, recid = {196757}, pages = {1 map ;}, address = {[Reston, Va.] :}, year = {1994}, }