Sybil P. Parker. (1997). McGraw-Hill dictionary of physics. New York: McGraw-Hill.
Dyfyniad Arddull ChicagoSybil P. Parker. McGraw-Hill Dictionary of Physics. New York: McGraw-Hill, 1997.
Dyfyniad MLASybil P. Parker. McGraw-Hill Dictionary of Physics. New York: McGraw-Hill, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.