Weille, J. d. (1966). Quantification of road user savings. World Bank.
Cita Chicago Style (17a ed.)Weille, Jan de. Quantification of Road User Savings. Washington, D.C.: World Bank, 1966.
Cita MLA (8a ed.)Weille, Jan de. Quantification of Road User Savings. World Bank, 1966.
Precaución: Estas citas no son 100% exactas.