Evaluation of Iowa's 70 mph speed limit :
2.5 year update /
Reginald R. Souleyrette, Thomas B. Stout, and Alicia L. Carriquiry.

APA Citation

Souleyrette, R. R., Carriquiry, A., Stout, T. Brooks., Iowa State University. Center for Transportation Research and Education., Iowa. Highway Research Board., Iowa. Department of Transportation. (2009). Evaluation of Iowa's 70 mph speed limit: 2.5 year update. Ames, Iowa: Center for Transportation Research and Education, Iowa State University.

MLA Citation

Iowa. Department of Transportation, et al.. Evaluation of Iowa's 70 Mph Speed Limit: 2.5 Year Update. Ames, Iowa: Center for Transportation Research and Education, Iowa State University, 2009.