Rock quality in the Kielder experimental tunnel, Co. Durham /
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| Format: | Book |
| Language: | English |
| Published: |
Crowthorne, Berkshire, [England] :
Transport and Road Research Laboratory,
1975.
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| Series: | TRRL supplementary report ;
no. 173UC. |
| Subjects: |
| Physical Description: | 15 pages, 20 unnumbered pages : illustrations ; 30 cm. |
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