Capelle, D. G. (1968). An introduction to highway transportation engineering. Washington, D.C: Institute of Traffic Engineers.
Παραπομπή Chicago StyleCapelle, Donald G. An Introduction to Highway Transportation Engineering. Washington, D.C: Institute of Traffic Engineers, 1968.
Παραπομπή MLACapelle, Donald G. An Introduction to Highway Transportation Engineering. Washington, D.C: Institute of Traffic Engineers, 1968.
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