Experiences in transportation system management / John J. R-oark.
Roark, John J.
Experiences in transportation system management / John J. R-oark. - Washington, D.C. : TRB - 88 p. - Synthesis of Highway Practice ; 81 / Transportation Researc-h Board .
Experiences in transportation system management / John J. R-oark. - Washington, D.C. : TRB - 88 p. - Synthesis of Highway Practice ; 81 / Transportation Researc-h Board .