Philippine Long Distance Telephone Company & Directories Philippines Corporation. (2002). Quezon City business directory. PLDT ; DPC.
Citazione stile Chigago Style (17a edizione)Philippine Long Distance Telephone Company e Directories Philippines Corporation. Quezon City Business Directory. Makati City: PLDT ; DPC, 2002.
Citatione MLA (9a ed.)Philippine Long Distance Telephone Company e Directories Philippines Corporation. Quezon City Business Directory. PLDT ; DPC, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.