Philippine Long Distance Telephone Company (PLDT). (1984). Building telephone facilities: Standards manual. Building Industry Consulting Service, PLDT.
Citação do estilo Chicago (17ª ed.)Philippine Long Distance Telephone Company (PLDT). Building Telephone Facilities: Standards Manual. [Quezon City]: Building Industry Consulting Service, PLDT, 1984.
Citação MLA (9ª ed.)Philippine Long Distance Telephone Company (PLDT). Building Telephone Facilities: Standards Manual. Building Industry Consulting Service, PLDT, 1984.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.