TY  - BOOK
AU  - Ward,R.C.
AU  - Robinson,M.
TI  - Principles of hydrology
SN  - 0077095022 :
AV  - GB661.2 .W35 1990
PY  - 2000///
CY  - London, New York
PB  - McGraw-Hill
KW  - Hydrology
ER  -