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.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিPhilippines. Department of Public Works and Highways এবং Patricia Ann V. Cantero. Public Works at 110: Service Solid & Strong. [Manila: Department of Public Works and Highways, 2008.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিPhilippines. Department of Public Works and Highways এবং Patricia Ann V. Cantero. Public Works at 110: Service Solid & Strong. Department of Public Works and Highways, 2008.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.