Venkatappa Rao, G. Principles of transportation and highway engineering. Tata McGraw-Hill.
Chicago Stili AlıntıVenkatappa Rao, G. Principles of Transportation and Highway Engineering. New Delhi: Tata McGraw-Hill.
MLA AlıntıVenkatappa Rao, G. Principles of Transportation and Highway Engineering. Tata McGraw-Hill.
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