TY  - BOOK
AU  - Spencer ,Edger W.
TI  - Geologic maps: a practical guide to the interpretation and preparation of geologic maps for geologists, geographers, engineers, and planners 
SN  - 0024147400
PY  - 1993///
CY  - New York
PB  - MacMillan
KW  - Geology
KW  - Maps
KW  - Geological mapping
ER  -