Man or machines a study of labor capital substitution in road construction in the Philippines
| Main Author: | |
|---|---|
| Format: | Book | 
| Language: | English | 
| Published: | Geneva
          International Labour Office
    
        1978. | 
| Subjects: | 
| Main Author: | |
|---|---|
| Format: | Book | 
| Language: | English | 
| Published: | Geneva
          International Labour Office
    
        1978. | 
| Subjects: |