Coles, M. (1984). Pasig River arrastre service now under PPA. Bulletin Today.
Cita Chicago (17th ed.)Coles, Manuel. "Pasig River Arrastre Service Now Under PPA." Bulletin Today 1984.
Cita MLA (9th ed.)Coles, Manuel. "Pasig River Arrastre Service Now Under PPA." Bulletin Today, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.