TY  - BOOK
AU  - Gealey,William Kelso
AU  - Switzer,George S.
ED  - California.
TI  - Geology of the Healdsburg quadrangle, California,
T2  - California.  Dept. of Natural Resources.  Division of Mines.  Bulletin 161
AV  - TN24.C2 A3 no. 161
U1  - 557.94 
PY  - 1951///
CY  - San Francisco
KW  - Geology
KW  - California
KW  - Sonoma County
KW  - Mineralogy
KW  - Schists
N1  - Part of illustrative matter in pocket; "References": p. 48-50
ER  -