APA aipamena

Cunard, R. A. (1990). Maintenance management of street and highway signs. Transportation Research Board, National Research Council.

Chicago Style aipamena

Cunard, Richard A. Maintenance Management of Street and Highway Signs. Washington, D.C: Transportation Research Board, National Research Council, 1990.

MLA aipamena

Cunard, Richard A. Maintenance Management of Street and Highway Signs. Transportation Research Board, National Research Council, 1990.