TY  - BOOK
AU  - Cech
TI  - Principles of water resources :history , Development: Issue analysis and problem- solving for environment 
SN  - 9780470733127
AV  - TC405 .C42 2009 
PY  - 2009///
CY  - Hoboken,NJ
PB  - John Wiley & Sons
KW  - Environment
ER  -