Philippine Rock Industries, Incorporated grinding rock becomes a successful business venture
| 主要作者: | |
|---|---|
| 格式: | 圖書 | 
| 語言: | English | 
| 出版: | [New York]
          American Universities Field Staff
    
        c1968. | 
| 叢編: | American Universities Field Staff. Southeast Asia series
              v. 16, no. 8 | 
| 主題: |