Private Development Corporation of the Philippines. (1969). The electric power industry. s.n.].
Dyfyniad Arddull ChicagoPrivate Development Corporation of the Philippines. The Electric Power Industry. [Makati: s.n.], 1969.
Dyfyniad MLAPrivate Development Corporation of the Philippines. The Electric Power Industry. s.n.], 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.