Clark, G. L. (1955). Applied X-rays (4th ed.). McGraw-Hill.
Dyfyniad Arddull ChicagoClark, George L. Applied X-rays. 4th ed. New York: McGraw-Hill, 1955.
Dyfyniad MLAClark, George L. Applied X-rays. 4th ed. McGraw-Hill, 1955.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.