Cita APA (7th ed.)

Sigua, R. G. (2000). The state of road safety in the Philippines. Public Policy.

Cita Chicago (17th ed.)

Sigua, Ricardo G. "The State of Road Safety in the Philippines." Public Policy 2000.

Cita MLA (9th ed.)

Sigua, Ricardo G. "The State of Road Safety in the Philippines." Public Policy, 2000.