Παραπομπή APA

(1971). Highway research record: Choice of travel mode and considerations in travel forecasting. Washington, D.C: National Research Council.

Παραπομπή Chicago Style

Highway Research Record: Choice of Travel Mode and Considerations in Travel Forecasting. Washington, D.C: National Research Council, 1971.

Παραπομπή MLA

Highway Research Record: Choice of Travel Mode and Considerations in Travel Forecasting. Washington, D.C: National Research Council, 1971.

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