Niel F. Beardsley { et. al..}. (1961). The International dictionary of physics and electronics (2d ed.). Van Nostrand Reinhold.
Dyfyniad Arddull ChicagoNiel F. Beardsley { et. al..}. The International Dictionary of Physics and Electronics. 2d ed. Princeton, N.J: Van Nostrand Reinhold, 1961.
Dyfyniad MLANiel F. Beardsley { et. al..}. The International Dictionary of Physics and Electronics. 2d ed. Van Nostrand Reinhold, 1961.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.