TY  - BOOK
AU  - Ward, R. C. and Robinson, M.
TI  - Proinciples of hydrology
SN  - 0071006389
U1  - 551.4 
PY  - 1990///
CY  - London
PB  - ;  Mcgraw-Hill Book
KW  - Geology
KW  - Hydrology
ER  -