Sources & producers of aggregates for highway construction in Illinois.
APA Citation
Illinois. Division of Highways. (11997). Sources & producers of aggregates for highway construction in Illinois. [Springfield, Ill.]: Illinois Dept. of Transportation, Division of Highways.
MLA Citation
Illinois. Division of Highways. Sources & Producers of Aggregates for Highway Construction In Illinois. [Springfield, Ill.]: Illinois Dept. of Transportation, Division of Highways, 11997.
Warning: These citations may not always be complete (especially for serials).