Probing ahead for tunnels
Subtitle: a review of present methods and recommendations for research.
Contributors: Transport and Road Research Laboratory.
Series: Supplementary reports / Transport and Road Research Laboratory -- 171UC; Supplementary reports (Transport and Road Research Laboratory) -- 171UC.
Publisher: Transport and Road Research Laboratory
Published: 1975
Place of publication: Crowthorne, Berks
Language: eng
Number of pages: 32