TY  - BOOK
AU  - Leroy,L.W.
TI  - Subsurface geologic methods
PY  - 1951///
CY  - Golden
PB  - Colorado School of Mines
KW  - GeologÃ­a
KW  - MetodologÃ­a
KW  - Subsuelo
KW  - Libro
ER  -