[by] Japan Society of Civil EngineersTunnel Engineering Committee, English Edition of the Standard Specifications for Sunneling Subcommittee, Japan Society of Civil Engineers2007.8<NA145-B6>
[by] Japan Society of Civil EngineersTunnel Engineering Committee, English Edition of the Standard Specifications for Tunneling Subcommittee, Japan Society of Civil Engineers2007.8<NA145-B5>