Citação norma APA

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

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.