Coles, M. (1984). Pasig River arrastre service now under PPA. Bulletin Today.
Dyfyniad Arddull ChicagoColes, Manuel. "Pasig River Arrastre Service Now Under PPA." Bulletin Today 1984.
Dyfyniad MLAColes, Manuel. "Pasig River Arrastre Service Now Under PPA." Bulletin Today, 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.