IRRI. Water management in Philippine: Irrigation systems: research operation. Manila: IRRI.
Chicago Stili AlıntıIRRI. Water Management in Philippine: Irrigation Systems: Research Operation. Manila: IRRI.
MLA AlıntıIRRI. Water Management in Philippine: Irrigation Systems: Research Operation. Manila: IRRI.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..