National Corrugated Steel Pipe Association (U.S.), Corrpro Companies, Bushman, J. B., & Blonska, F. (1988). Condition and corrosion survey on corrugated steel storm sewer and culvert pipe: Second interim report, September, 1988.
Cita Chicago Style (17a ed.)National Corrugated Steel Pipe Association (U.S.), Corrpro Companies, James B. Bushman, y Frank Blonska. Condition and Corrosion Survey on Corrugated Steel Storm Sewer and Culvert Pipe: Second Interim Report, September, 1988. Washington, D.C. (2011 Eye St. N.W., Washington 20006) : The Association, 1988.
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