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Dyfyniad Arddull ChicagoYu, Wei-wen, and Roger A. LaBoube. Cold-formed Steel Design. 4th ed. Hoboken, N.J: John Wiley & Sons, 2010. https://doi.org/10.1002/9780470949825.
Dyfyniad MLAYu, Wei-wen, and Roger A. LaBoube. Cold-formed Steel Design. 4th ed. John Wiley & Sons, 2010. https://doi.org/10.1002/9780470949825.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.