TY  - BOOK
ED  - French oil and gas industry association                                                                                                                                                                                                                        . 
TI  - Main types of geological maps: Purpose, use and perperation / 
SN  - 2-7108-0622-3
U1  - 551.0223 
PY  - 1997///
CY  - New Delhi : 
PB  - Oxford & IBH Publishing company , 
ER  -