Evaluation of dynamic speed display signs (DSDS) /
by Elisabeth R. Rose and Gerald L. Ullman.

APA Citation

Rose, E. R., Ullman, G. L., United States. Federal Highway Administration., Texas Transportation Institute., Texas. Department of Transportation. (2003). Evaluation of dynamic speed display signs (DSDS). College Station, Tex.: Texas Transportation Institute, Texas A & M University System .

MLA Citation

Texas. Department of Transportation, et al.. Evaluation of Dynamic Speed Display Signs (DSDS). College Station, Tex.: Texas Transportation Institute, Texas A & M University System , 2003.