APA
Wisconsin. Department of Transportation, . (1981). Standard specifications for road and bridge construction. uo: Wisconsin. Department of Transportation.
Chicago
Wisconsin. Department of Transportation, . 1981. Standard specifications for road and bridge construction. uo: Wisconsin. Department of Transportation.
Harvard
Wisconsin. Department of Transportation, . (1981). Standard specifications for road and bridge construction. uo: Wisconsin. Department of Transportation.
MLA
Wisconsin. Department of Transportation, . Standard specifications for road and bridge construction. uo: Wisconsin. Department of Transportation. 1981.