Private Development Corporation of the Philippines. The Philippine economy: A brief perspective : country report. s.n.
芝加哥风格引文Private Development Corporation of the Philippines. The Philippine Economy: A Brief Perspective : Country Report. [Makati, Rizal: s.n.
MLA引文Private Development Corporation of the Philippines. The Philippine Economy: A Brief Perspective : Country Report. s.n.
警告：这些引文格式不一定是100％准确.