An introduction to the design of underground openings for defense
| Auteur principal: | |
|---|---|
| Autres auteurs: | |
| Format: | Livre | 
| Langue: | English | 
| Publié: | Golden
          s.n.
    
        1951. | 
| Collection: | Quarterly of the Colorado School of Mines
              v.46, no.1 | 
| Sujets: |