APA-viite (7. p.)

Private Development Corporation of the Philippines. (1973). The concrete aggregates industry. s.n.].

Chicago-viite (17. p.)

Private Development Corporation of the Philippines. The Concrete Aggregates Industry. [Makati: s.n.], 1973.

MLA-viite (9. p.)

Private Development Corporation of the Philippines. The Concrete Aggregates Industry. s.n.], 1973.