Cita APA (7th ed.)

National Research Council (U.S.). Highway Research Board. Committee on Visibility. (1972). Research problem statements ... on tunnel lighting .. The Board.

Cita Chicago (17th ed.)

National Research Council (U.S.). Highway Research Board. Committee on Visibility. Research Problem Statements ... on Tunnel Lighting .. Washington, D.C: The Board, 1972.

Cita MLA (9th ed.)

National Research Council (U.S.). Highway Research Board. Committee on Visibility. Research Problem Statements ... on Tunnel Lighting .. The Board, 1972.