APA

U.S. Department of Transportation. Federal Highway Administration. Bureau of Motor Carrier Safety, . (1977). Analysis & summary of accident investigations 1973-1976. Washington DC: U.S. Department of Transportation. Federal Highway Administration. Bureau of Motor Carrier Safety.

Chicago

U.S. Department of Transportation. Federal Highway Administration. Bureau of Motor Carrier Safety, . 1977. Analysis & summary of accident investigations 1973-1976. Washington DC: U.S. Department of Transportation. Federal Highway Administration. Bureau of Motor Carrier Safety.

Harvard

U.S. Department of Transportation. Federal Highway Administration. Bureau of Motor Carrier Safety, . (1977). Analysis & summary of accident investigations 1973-1976. Washington DC: U.S. Department of Transportation. Federal Highway Administration. Bureau of Motor Carrier Safety.

MLA

U.S. Department of Transportation. Federal Highway Administration. Bureau of Motor Carrier Safety, . Analysis & summary of accident investigations 1973-1976. Washington DC: U.S. Department of Transportation. Federal Highway Administration. Bureau of Motor Carrier Safety. 1977.