TY  - BOOK
AU  - A. T. Hjelmfelt.
AU  - John J. Cassidy
TI  -  Hydrology for engineers and planners
U1  - 627 HYD 1975 
PY  - 1975///
CY  -  Ames, 
PB  -  Iowa State University Press
KW  -  Civil engineering
KW  - hydrology water
N1  - Scope of hydrology; Statistical methods in hydrology; Precipitation
ER  -