TY  - BOOK
AU  - Walton,William Clarence
TI  - Groundwater resource evaluation
SN  - 07-068051-5
U1  - 551.35 
PY  - 1970///
CY  - New YorkU.S.A.
PB  - McGraw-Hill
KW  - Agua subterranea
N1  - BIBLIOTECA: UACH-FING
ER  -