APA (7th ed.) Citation

Roskin, M. E. (1981). Purposes of vehicle trips and travel. U.S. Department of Transportation, Federal Highway Administration : For sale by the Supt. of Docs., U.S. G.P.O. ; National Technical Information Service.

Chicago Style (17th ed.) Citation

Roskin, Mark E. Purposes of Vehicle Trips and Travel. Washington, D.C. : Springfield, Va.: U.S. Department of Transportation, Federal Highway Administration : For sale by the Supt. of Docs., U.S. G.P.O. ; National Technical Information Service, 1981.

MLA (9th ed.) Citation

Roskin, Mark E. Purposes of Vehicle Trips and Travel. U.S. Department of Transportation, Federal Highway Administration : For sale by the Supt. of Docs., U.S. G.P.O. ; National Technical Information Service, 1981.