APA

U.S. Department of Transportation, Federal Highway Administration, . (1994). Recovery and effective reuse of discarded materials and by-products for construction of highway facilities. Symposium held October 19-22, 1993 in Denver, Colorado. Proceedings. Washington DC: U.S. Department of Transportation.

Chicago

U.S. Department of Transportation, Federal Highway Administration, . 1994. Recovery and effective reuse of discarded materials and by-products for construction of highway facilities. Symposium held October 19-22, 1993 in Denver, Colorado. Proceedings. Washington DC: U.S. Department of Transportation.

Harvard

U.S. Department of Transportation, Federal Highway Administration, . (1994). Recovery and effective reuse of discarded materials and by-products for construction of highway facilities. Symposium held October 19-22, 1993 in Denver, Colorado. Proceedings. Washington DC: U.S. Department of Transportation.

MLA

U.S. Department of Transportation, Federal Highway Administration, . Recovery and effective reuse of discarded materials and by-products for construction of highway facilities. Symposium held October 19-22, 1993 in Denver, Colorado. Proceedings. Washington DC: U.S. Department of Transportation. 1994.