Directory of national sources of information.
| Format: | Book | 
|---|---|
| Language: | English | 
| Published: | Quezon City
          UP Institute For Small-Scale Industries
    
        1979. | 
| Subjects: | 
| Format: | Book | 
|---|---|
| Language: | English | 
| Published: | Quezon City
          UP Institute For Small-Scale Industries
    
        1979. | 
| Subjects: |