Copperthwaite, W. C. (1906). Tunnel shields and the use of compressed air in subaqueous works. Archibald Constable.
Chicago Style (17th ed.) CitationCopperthwaite, William Charles. Tunnel Shields and the Use of Compressed Air in Subaqueous Works. London: Archibald Constable, 1906.
MLA (9th ed.) CitationCopperthwaite, William Charles. Tunnel Shields and the Use of Compressed Air in Subaqueous Works. Archibald Constable, 1906.
Warning: These citations may not always be 100% accurate.