APA (7th ed.) Citation

Robles, G. S. (1955). Engineering and architectural laws of the Philippines. [s.n.].

Chicago Style (17th ed.) Citation

Robles, Gonzalo S. Engineering and Architectural Laws of the Philippines. Manila: [s.n.], 1955.

MLA (9th ed.) Citation

Robles, Gonzalo S. Engineering and Architectural Laws of the Philippines. [s.n.], 1955.