TY  - BOOK
AU  - O'Laoghaire, D. T.
AU  - Himmelblau. D.M
TI  -  Optimal expansion of a water resources system
T2  - Water pollution :a series of monographs
U1  - 628.1 
PY  - 1974///
CY  - New York 
PB  - Academic press
KW  - Water supply, sanitary and muncipal engineering
KW  - Water Resources System
ER  -