Rocard, Y. (1959). Principles of electricity and magnetism. Pitman.
Dyfyniad Arddull ChicagoRocard, Yves. Principles of Electricity and Magnetism. London: Pitman, 1959.
Dyfyniad MLARocard, Yves. Principles of Electricity and Magnetism. Pitman, 1959.
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