Philippines. (1999). RA 8749: The Philippine Clean Air Act of 1999 and its implementing rules and regulaions. Department of Environment and Natural Resources.
Chicago-Zitierstil (17. Ausg.)Philippines. RA 8749: The Philippine Clean Air Act of 1999 and Its Implementing Rules and Regulaions. Quezon City: Department of Environment and Natural Resources, 1999.
MLA-Zitierstil (9. Ausg.)Philippines. RA 8749: The Philippine Clean Air Act of 1999 and Its Implementing Rules and Regulaions. Department of Environment and Natural Resources, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.