Cita APA (7a ed.)

Viloria, L. A. (1977). Traffic congestion in Metro Manila. s.n.].

Cita Chicago Style (17a ed.)

Viloria, Leandro Ancheta. Traffic Congestion in Metro Manila. [Quezon City: s.n.], 1977.

Cita MLA (9a ed.)

Viloria, Leandro Ancheta. Traffic Congestion in Metro Manila. s.n.], 1977.