TY  - BOOK
AU  - Gray,Donald M.
TI  - Handbook on the principles of hydrology
SN  - 0912394072
PY  - 1970///
CY  - Canada
PB  - secretariat Canadian National Committee
KW  - Hydrology
KW  - Canada
N1  - On spine: Principles of hydrology; Includes bibliographies
ER  -