Sheppard, D., & Valentine, S. D. (1980). Elderly pedestrians: Assessments of the relative value of instruction on alternative safety topics. Road User Characteristics Division, Safety Department, Transport and Road Research Laboratory.
Citação norma ChicagoSheppard, D., and Shelagh D. Valentine. Elderly Pedestrians: Assessments of the Relative Value of Instruction on Alternative Safety Topics. Crowthorne: Road User Characteristics Division, Safety Department, Transport and Road Research Laboratory, 1980.
Citação norma MLASheppard, D., and Shelagh D. Valentine. Elderly Pedestrians: Assessments of the Relative Value of Instruction on Alternative Safety Topics. Road User Characteristics Division, Safety Department, Transport and Road Research Laboratory, 1980.