TY  - BOOK
ED  - American Water Works Association
TI  - Groundwater
T2  - Awwa manual
SN  - 0898670799
AV  - TD491 G76
PY  - 1989///
CY  - Denver, colorado
PB  - American water works association
KW  - Pozos
KW  - Aguas subterráneas
ER  -