APA

United States, . (1994). 1992 census of transportation. Washington, D.C: U.S. Dept. of Commerce, Economics and Statistics Administration, Bureau of the Census.

Chicago

United States, . 1994. 1992 census of transportation. Washington, D.C: U.S. Dept. of Commerce, Economics and Statistics Administration, Bureau of the Census.

Harvard

United States, . (1994). 1992 census of transportation. Washington, D.C: U.S. Dept. of Commerce, Economics and Statistics Administration, Bureau of the Census.

MLA

United States, . 1992 census of transportation. Washington, D.C: U.S. Dept. of Commerce, Economics and Statistics Administration, Bureau of the Census. 1994.