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Dyfyniad Arddull ChicagoPaul,, Clayton et. al. Introduction to Electromagnetic Fields. 3rd. New York: Mc Graw Hill, 1997.
Dyfyniad MLAPaul,, Clayton et. al. Introduction to Electromagnetic Fields. 3rd. Mc Graw Hill, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.