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Motorists' comprehension of regulatory, warning, and symbol signs. Volume II : Technical report Knoblauch, Richard L ; Pietrucha, Martin T

By: Contributor(s): Publication details: Washington DC U.S. Department of Transportation, 1987; Federal Highway Administration, ; BioTechnology, Inc, Description: 121 sSubject(s): Bibl.nr: VTI 96.1187Location:
Item type: Reports, conferences, monographs