APA引文

Private Development Corporation of the Philippines. Economic and Corporate Research Office. (1973). The flour milling industry. s.n.].

芝加哥风格引文

Private Development Corporation of the Philippines. Economic and Corporate Research Office. The Flour Milling Industry. [Makati, Rizal: s.n.], 1973.

MLA引文

Private Development Corporation of the Philippines. Economic and Corporate Research Office. The Flour Milling Industry. s.n.], 1973.

警告：这些引文格式不一定是100％准确.