Implementing rules and regulations of the Philippine Clean Air Act of 1999 (Republic Act No. 8749).
| Format: | Knjiga | 
|---|---|
| Jezik: | English | 
| Izdano: | Quezon City
          Department of Environment and Natural Resources
    
        c2000. | 
| Teme: | 
| Format: | Knjiga | 
|---|---|
| Jezik: | English | 
| Izdano: | Quezon City
          Department of Environment and Natural Resources
    
        c2000. | 
| Teme: |