Manila North Road improvement project (Rosario-Laoag Section) package I & II ; monthly report, May 1980.
| Formatua: | Liburua | 
|---|---|
| Hizkuntza: | English | 
| Argitaratua: | Manila
          Ministry of Public Highways
    
        c1980. | 
| Gaiak: | 
| Formatua: | Liburua | 
|---|---|
| Hizkuntza: | English | 
| Argitaratua: | Manila
          Ministry of Public Highways
    
        c1980. | 
| Gaiak: |