Philippines. Dept. of Public Works and Highways. Bureau of Research and Standards. DPWH technical journal. Bureau of Research and Standards, Dept. of Public Works and Highways.
Dyfyniad Arddull ChicagoPhilippines. Dept. of Public Works and Highways. Bureau of Research and Standards. DPWH Technical Journal. Diliman, Quezon City: Bureau of Research and Standards, Dept. of Public Works and Highways.
Dyfyniad MLAPhilippines. Dept. of Public Works and Highways. Bureau of Research and Standards. DPWH Technical Journal. Bureau of Research and Standards, Dept. of Public Works and Highways.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.