Association of Structural Engineers of the Philippines, Philippines (Republic). Board of Examiners for Civil Engineers, & Philippine Association of Civil Engineers. (1972). National structural code for buildings. s.n.].
Citazione stile Chigago Style (17a edizione)Association of Structural Engineers of the Philippines, Philippines (Republic). Board of Examiners for Civil Engineers, e Philippine Association of Civil Engineers. National Structural Code for Buildings. [Manila: s.n.], 1972.
Citatione MLA (9a ed.)Association of Structural Engineers of the Philippines, et al. National Structural Code for Buildings. s.n.], 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.