TY  - BOOK
T1  - Efficiency in irrigation the conjunctive use of surface and groundwater resources
A2  - O'Mara, Gerald T.
LA  - English
PP  - Washington, D.C.
PB  - World Bank
YR  - 1988
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217603584923
OP  - 196
CN  - HD 1714 E34
KW  - Irrigation : Economic aspects.
KW  - Irrigation efficiency.
ER  -