1968 estimate of the cost of completing the national system of interstate and defense highways in the State of Illinois.
Contributors: United States. Bureau of Public Roads.
Published: 1967
Place of publication: [Springfield?]
Language: eng
Number of pages: 311
Subjects: Roads -- Illinois -- Finance.
Other titles: Estimate of the cost of completing the national system of interstate and defense highways in the State of Illinois.
Notes: Prepared in cooperation with the U.S. Bureau of Public Roads.