Trott, J. J., & Stevens, J. B. (1980). The load carrying capacity of cracked rigid pipes--a preliminary study. Transport and Road Research Laboratory, Tunnels and Underground Pipes Division.
Chicago-referens (17:e uppl.)Trott, J. J., och J. B. Stevens. The Load Carrying Capacity of Cracked Rigid Pipes--a Preliminary Study. Crowthorne, Berk: Transport and Road Research Laboratory, Tunnels and Underground Pipes Division, 1980.
MLA-referens (9:e uppl.)Trott, J. J., och J. B. Stevens. The Load Carrying Capacity of Cracked Rigid Pipes--a Preliminary Study. Transport and Road Research Laboratory, Tunnels and Underground Pipes Division, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.