TY  - BOOK
AU  - Ward, R.C
AU  - Robinson, M.
TI  - Principles of hydrology
SN  - 007707204 9
U1  - 551.48 
PY  - 0000///:ill., fig., tables
CY  - London
PB  - McGraw - Hill
KW  - Geology -
KW  - Geomorphology and hydrosphere - Hydrology -
N1  - Includes bibliographical references and index
ER  -