Ketchum, M. S., & Draffin, J. O. (1932). Strength of light I beams: A report of an investigation conducted by the Engineering Experiment Station, University of Illinois in coöperation with Jones and Laughlin Steel Corporation. University of Illinois.
Chicago Style (17th ed.) CitationKetchum, Milo S., and Jasper Owen Draffin. Strength of Light I Beams: A Report of an Investigation Conducted by the Engineering Experiment Station, University of Illinois in Coöperation with Jones and Laughlin Steel Corporation. Urbana, Ill.: University of Illinois, 1932.
MLA引文Ketchum, Milo S., and Jasper Owen Draffin. Strength of Light I Beams: A Report of an Investigation Conducted by the Engineering Experiment Station, University of Illinois in Coöperation with Jones and Laughlin Steel Corporation. University of Illinois, 1932.