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).
Citación estilo ChicagoTechnical Committee on Backfilling and Contact Grouting of Tunnels, Shafts of the American Underground Construction Association, y 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.
Cita MLATechnical Committee on Backfilling and Contact Grouting of Tunnels, Shafts of the American Underground Construction Association, y 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.