| Author: | Vogel, Robert M. |
| Subject: | TA, Tunneling -- History |
| Format: | Text |
| Date issued: | 2012 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Tunnel Engineering : A Museum Treatment [electronic resource] / Robert M. Vogel |