American Underground Construction Association. Technical Committee on Backfilling and Contact Grouting of Tunnels and Shafts & Henn, R. W. (2003). AUA guidelines for backfill and contact grouting of tunnels and shafts / edited by Raymond W. Henn, prepared by Technical Committee on Backfilling and Contact Grouting of Tunnels and Shafts of the American Underground Construction Association. Thomas Telford.
Chicago Edition CitationAmerican Underground Construction Association. Technical Committee on Backfilling and Contact Grouting of Tunnels and Shafts and Raymond W. Henn. AUA Guidelines for Backfill and Contact Grouting of Tunnels and Shafts / Edited by Raymond W. Henn, Prepared by Technical Committee on Backfilling and Contact Grouting of Tunnels and Shafts of the American Underground Construction Association. London: Thomas Telford, 2003.
MLA Edition CitationAmerican Underground Construction Association. Technical Committee on Backfilling and Contact Grouting of Tunnels and Shafts and Raymond W. Henn. AUA Guidelines for Backfill and Contact Grouting of Tunnels and Shafts / Edited by Raymond W. Henn, Prepared by Technical Committee on Backfilling and Contact Grouting of Tunnels and Shafts of the American Underground Construction Association. Thomas Telford, 2003.