General aggregate source information, 1982.
APA Citation
Iowa. Highway Division. Office of Materials. (1982). General aggregate source information, 1982. [Ames]: Iowa Department of Transportation, Division of Highways, Office of Materials.
MLA Citation
Iowa. Highway Division. Office of Materials. General Aggregate Source Information, 1982. [Ames]: Iowa Department of Transportation, Division of Highways, Office of Materials, 1982.
Warning: These citations may not always be complete (especially for serials).