APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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