Παραπομπή σε μορφή APA (7η εκδ.)

(2000). Implementing rules and regulations of the Philippine Clean Air Act of 1999: (Republic Act No. 8749). Department of Environment and Natural Resources.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Implementing Rules and Regulations of the Philippine Clean Air Act of 1999: (Republic Act No. 8749). Quezon City: Department of Environment and Natural Resources, 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Implementing Rules and Regulations of the Philippine Clean Air Act of 1999: (Republic Act No. 8749). Department of Environment and Natural Resources, 2000.