The Iowa primary road system :
requirements for system preservation and uniform service improvements for the next 10 years and funding alternatives /
Iowa Department of Transportation.
APA Citation
Iowa. Dept. of Transportation. (1980). The Iowa primary road system: requirements for system preservation and uniform service improvements for the next 10 years and funding alternatives. [Ames, Iowa]: The Department.
MLA Citation
Iowa. Dept. of Transportation. The Iowa Primary Road System: Requirements for System Preservation And Uniform Service Improvements for the Next 10 Years And Funding Alternatives. [Ames, Iowa]: The Department, 1980.
Warning: These citations may not always be complete (especially for serials).