Turner, D. S., & Hall, J. W. (1994). Severity indices for roadside features. National Academy Press.
Cita Chicago Style (17a ed.)Turner, Daniel S., y Jerome W. Hall. Severity Indices for Roadside Features. Washington, D.C: National Academy Press, 1994.
Cita MLA (9a ed.)Turner, Daniel S., y Jerome W. Hall. Severity Indices for Roadside Features. National Academy Press, 1994.
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