Cita APA

Private Development Corporation of the Philippines. (1973). The portland cement industry. s.n.].

Citación estilo Chicago

Private Development Corporation of the Philippines. The Portland Cement Industry. [Makati, Rizal: s.n.], 1973.

Cita MLA

Private Development Corporation of the Philippines. The Portland Cement Industry. s.n.], 1973.

Warning: These citations may not always be 100% accurate.