Gray, D. E. (1972). American Institute of physics handbook. McGraw-Hill.
Dyfyniad Arddull ChicagoGray, Dwight E. American Institute of Physics Handbook. New York: McGraw-Hill, 1972.
Dyfyniad MLAGray, Dwight E. American Institute of Physics Handbook. McGraw-Hill, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.