IRRI. Water management in Philippine: Irrigation systems: research operation. Manila: IRRI.
استشهاد بنمط شيكاغوIRRI. Water Management in Philippine: Irrigation Systems: Research Operation. Manila: IRRI.
MLA استشهادIRRI. Water Management in Philippine: Irrigation Systems: Research Operation. Manila: IRRI.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.