Washington (State). Department of Transportation, Washington (State). Department of Highways, Washington State Highway Commission, & Rand McNally and Company. (1937). Washington State highways.
Cita Chicago Style (17a ed.)Washington (State). Department of Transportation, Washington (State). Department of Highways, Washington State Highway Commission, y Rand McNally and Company. Washington State Highways. Olympia, 1937.
Cita MLA (8a ed.)Washington (State). Department of Transportation, et al. Washington State Highways. 1937.
Precaución: Estas citas no son 100% exactas.