National Research Council (U.S.). Highway Research Board. (1960). Night visibility: 1960 ; presented at the 39th Annual Meeting, January 11-15, 1960. National Academy of Sciences-National Research Council.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)National Research Council (U.S.). Highway Research Board. Night Visibility: 1960 ; Presented at the 39th Annual Meeting, January 11-15, 1960. Washington: National Academy of Sciences-National Research Council, 1960.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)National Research Council (U.S.). Highway Research Board. Night Visibility: 1960 ; Presented at the 39th Annual Meeting, January 11-15, 1960. National Academy of Sciences-National Research Council, 1960.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.