Sigua, R. G. (2000). The state of road safety in the Philippines. Public Policy.
Chicago Style (17th ed.) CitationSigua, Ricardo G. "The State of Road Safety in the Philippines." Public Policy 2000.
ציטוט MLASigua, Ricardo G. "The State of Road Safety in the Philippines." Public Policy, 2000.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.