Ballinan, J. D. A., & Zinampan, L. A. S. Efficiency assessment of the two concessionaires: Manila Waters Company Incorporated and Maynilad Water Services Incorporated.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ballinan, John Dale A., و Lyn Alexandra S. Zinampan. Efficiency Assessment of the Two Concessionaires: Manila Waters Company Incorporated and Maynilad Water Services Incorporated.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Ballinan, John Dale A., و Lyn Alexandra S. Zinampan. Efficiency Assessment of the Two Concessionaires: Manila Waters Company Incorporated and Maynilad Water Services Incorporated.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.