Negros.
| Médium: | Mapa | 
|---|---|
| Jazyk: | English | 
| Vydáno: | 
        Manila
          Bureau of Public Works
    
        1964.
     | 
| Edice: | Surface water resources map series
              NC51             | 
| Médium: | Mapa | 
|---|---|
| Jazyk: | English | 
| Vydáno: | 
        Manila
          Bureau of Public Works
    
        1964.
     | 
| Edice: | Surface water resources map series
              NC51             |