TY  - BOOK
AU  - Ward, R. C.
AU  - Robinson,M.
TI  - Principles of hydrology
SN  - 0077095022
PY  - 2000///
CY  - London
PB  -  McGraw-Hill
KW  - Hydrology
N1  - Includes index; Bibliography: p. 375-420
ER  -