American Association of State Highway and Transportation Officials, & American Association of State Highway and Transportation Officials. (2004). Guide for the planning, design, and operation of pedestrian facilities. Washington, D.C.: American Association of State Highway and Transportation Officials.
Citación estilo ChicagoAmerican Association of State Highway and Transportation Officials, y American Association of State Highway and Transportation Officials. Guide for the Planning, Design, and Operation of Pedestrian Facilities. Washington, D.C.: American Association of State Highway and Transportation Officials, 2004.
Cita MLAAmerican Association of State Highway and Transportation Officials, y American Association of State Highway and Transportation Officials. Guide for the Planning, Design, and Operation of Pedestrian Facilities. Washington, D.C.: American Association of State Highway and Transportation Officials, 2004.