TY  - BOOK
AU  - Bishop,Margaret S.
TI  - Subsurface mapping / 
U1  - 526.8 BIS 
PY  - 1967///
CY  - New York : 
PB  - John Wiley & Sons, Inc., 
KW  - Subsurface geology
KW  - Maps
N1  - Includes index.
ER  -