Office of Highway Safety, U. B. o. P. R. (1963). Improvement of the present system of traffic accident records. Traffic Institute, Northwestern University.
Chicagoスタイル(17版)引用形式Office of Highway Safety, U.S. Bureau of Public Roads. Improvement of the Present System of Traffic Accident Records. Evanston, Ill: Traffic Institute, Northwestern University, 1963.
MLA(9版)引用形式Office of Highway Safety, U.S. Bureau of Public Roads. Improvement of the Present System of Traffic Accident Records. Traffic Institute, Northwestern University, 1963.
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