APA引文

Caliwara, C. A. (1963). The exploitation of precast and prestressed concrete in the Philippines. s.n.

Chicago Style (17th ed.) Citation

Caliwara, Cesar A. The Exploitation of Precast and Prestressed Concrete in the Philippines. [S.l: s.n, 1963.

MLA引文

Caliwara, Cesar A. The Exploitation of Precast and Prestressed Concrete in the Philippines. s.n, 1963.