Rechel, R. (1976). Federal and state influence on transportation facilities, services and fuel consumption. The Conservation Foundation.
Cita Chicago (17th ed.)Rechel, Ralph. Federal and State Influence on Transportation Facilities, Services and Fuel Consumption. Washington, D. C: The Conservation Foundation, 1976.
Cita MLA (9th ed.)Rechel, Ralph. Federal and State Influence on Transportation Facilities, Services and Fuel Consumption. The Conservation Foundation, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.