An introduction to the design of underground openings for defense
| Autor Principal: | |
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| Outros autores: | |
| Formato: | Libro | 
| Idioma: | English | 
| Publicado: | Golden
          s.n.
    
        1951. | 
| Series: | Quarterly of the Colorado School of Mines
              v.46, no.1 | 
| Subjects: |