Technical Committee on Backfilling and Contact Grouting of Tunnels, Shafts of the American Underground Construction Association, & Henn, R. W. (2003). AUA guidelines for backfilling and contact grouting of tunnels and shafts. Estados Unidos de América: American Society of Civil Engineers (ASCE).
Chicago Style CitationTechnical Committee on Backfilling and Contact Grouting of Tunnels, Shafts of the American Underground Construction Association, and Raymond W. Henn. AUA Guidelines for Backfilling and Contact Grouting of Tunnels and Shafts. Estados Unidos de América: American Society of Civil Engineers (ASCE), 2003.
MLA CitationTechnical Committee on Backfilling and Contact Grouting of Tunnels, Shafts of the American Underground Construction Association, and Raymond W. Henn. AUA Guidelines for Backfilling and Contact Grouting of Tunnels and Shafts. Estados Unidos de América: American Society of Civil Engineers (ASCE), 2003.