Northern Philippine linguistic geography
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | 
        Tokyo
          Institute for the Study of Languages and Cultures of Asia and Africa
    
        1977.
     | 
| Pynciau: | 
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | 
        Tokyo
          Institute for the Study of Languages and Cultures of Asia and Africa
    
        1977.
     | 
| Pynciau: |