Office of Highway Safety, U. B. o. P. R. (1963). Improvement of the present system of traffic accident records. Traffic Institute, Northwestern University.
Chicago Style (17. basım) AtıfOffice 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 (9th ed.) AtıfOffice 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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