Παραπομπή APA

(1968). Evolutionary impovements in urban transportation systems: Study of evolutionary urban transportation. Washington, D.C: Westinghouse Air Brake Company.

Παραπομπή Chicago Style

Evolutionary Impovements in Urban Transportation Systems: Study of Evolutionary Urban Transportation. Washington, D.C: Westinghouse Air Brake Company, 1968.

Παραπομπή MLA

Evolutionary Impovements in Urban Transportation Systems: Study of Evolutionary Urban Transportation. Washington, D.C: Westinghouse Air Brake Company, 1968.

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