Philippine Rock Industries, Incorporated grinding rock becomes a successful business venture
| Autor principal: | |
|---|---|
| Format: | Llibre | 
| Idioma: | English | 
| Publicat: | [New York]
          American Universities Field Staff
    
        c1968. | 
| Col·lecció: | American Universities Field Staff. Southeast Asia series
              v. 16, no. 8 | 
| Matèries: |