TY  - BOOK
AU  - todd,DavidKeith
TI  - Groundwater hydrology
SN  - 9971511738
U1  - 551.49 
PY  - 1980///
CY  - New york
PB  - John Wiley & Sons, INC. &sons
KW  - Groundwater
KW  - Groundwater flow--Mathematical models
N1  - Includes bibliographical references and index
ER  -