Arthur D. Little, Inc. (1968). Cost-effectiveness in traffic safety. F.A. Praeger.
Cita Chicago (17th ed.)Arthur D. Little, Inc. Cost-effectiveness in Traffic Safety. New York: F.A. Praeger, 1968.
Cita MLA (9th ed.)Arthur D. Little, Inc. Cost-effectiveness in Traffic Safety. F.A. Praeger, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.