Philippines. Department of Public Works and Highways & Cantero, P. A. V. (2008). Public Works at 110: Service solid & strong. Department of Public Works and Highways.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines. Department of Public Works and Highways و Patricia Ann V. Cantero. Public Works at 110: Service Solid & Strong. [Manila: Department of Public Works and Highways, 2008.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines. Department of Public Works and Highways و Patricia Ann V. Cantero. Public Works at 110: Service Solid & Strong. Department of Public Works and Highways, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.