APA (7th ed.) Citation

Pitt, J. D., & Ackers, P. (1982). Hydraulic roughness of segmentally lined tunnels. Construction Industry Researh and Information Association.

Chicago Style (17th ed.) Citation

Pitt, J. D., and P. Ackers. Hydraulic Roughness of Segmentally Lined Tunnels. London: Construction Industry Researh and Information Association, 1982.

MLA (9th ed.) Citation

Pitt, J. D., and P. Ackers. Hydraulic Roughness of Segmentally Lined Tunnels. Construction Industry Researh and Information Association, 1982.

Warning: These citations may not always be 100% accurate.