Citazione Stile APA (7a Edizione)

National Research Council (U.S.). Highway Research Board. (1957). Night visibility 1956: Presented at the Thirty-fifth Annual Meeting, January 17-20, 1956. Highway Research Board.

Citazione stile Chigago Style (17a edizione)

National Research Council (U.S.). Highway Research Board. Night Visibility 1956: Presented at the Thirty-fifth Annual Meeting, January 17-20, 1956. Washington: Highway Research Board, 1957.

Citatione MLA (9a ed.)

National Research Council (U.S.). Highway Research Board. Night Visibility 1956: Presented at the Thirty-fifth Annual Meeting, January 17-20, 1956. Highway Research Board, 1957.