TY  - BOOK
AU  - Ward,R.C.
AU  - Robinson,M.
TI  - Principles of hydrology
SN  - 0071006389
U1  - 551.4 19
PY  - 1990///
CY  - London, New York
PB  - McGraw-Hill
KW  - Hydrology
N1  - Includes bibliographical references and index
ER  -