U. S. Federal Highway Administration, Rapuano, M., & Simonds, J. O. (1968). The freeway in the city; principles of planning and design. A report to the Secretary, Department of Transportation by the urban advisors to the Federal highway Administrator. U. S. Govt. Print. Off.

U. S. Federal Highway Administration, Michael Rapuano, и John Ormsbee Simonds. The Freeway in the City; Principles of Planning and Design. A Report to the Secretary, Department of Transportation by the Urban Advisors to the Federal Highway Administrator. Washington: U. S. Govt. Print. Off, 1968.

U. S. Federal Highway Administration, et al. The Freeway in the City; Principles of Planning and Design. A Report to the Secretary, Department of Transportation by the Urban Advisors to the Federal Highway Administrator. U. S. Govt. Print. Off, 1968.