APA
A. B. Carrrillo, .Structural Design Data and Specification. Quezon City, Philippines: Ken Incorporated.
Chicago
A. B. Carrrillo, .Structural Design Data and Specification. Quezon City, Philippines: Ken Incorporated.
Harvard
A. B. Carrrillo, .Structural Design Data and Specification. Quezon City, Philippines: Ken Incorporated.
MLA
A. B. Carrrillo, .Quezon City, Philippines: Ken Incorporated. .