Cita APA (7th ed.)

National Master Plumbers/Plumbing Engineering and Plumbing Contractor's Association of the Philippines. Technical Committee & Philippines. (1994). National plumbing code of the Philippines (R.A. 1378) (1993-94 rev.). s.n.

Cita Chicago (17th ed.)

National Master Plumbers/Plumbing Engineering and Plumbing Contractor's Association of the Philippines. Technical Committee i Philippines. National Plumbing Code of the Philippines (R.A. 1378). 1993-94 rev. [Manila: s.n, 1994.

Cita MLA (9th ed.)

National Master Plumbers/Plumbing Engineering and Plumbing Contractor's Association of the Philippines. Technical Committee i Philippines. National Plumbing Code of the Philippines (R.A. 1378). 1993-94 rev. s.n, 1994.