TY  - BOOK
AU  - Rodda J C
AU  -  Downing R A
AU  -  Law F M
TI  - Systematic hydrology
U1  - H422, L6 
PY  - 1976///
CY  - London
PB  - Butterworth         
KW  -  Action of water
KW  -  Hydrology
KW  - Geology
ER  -