Guill, JH; Moteff, John (June 1960). «Dosimetry in Europe and the USSR». Third Pacific Area Meeting Papers — Materials in Nuclear Applications. Symposium on Radiation Effects and Dosimetry - Third Pacific Area Meeting American Society for Testing Materials, October 1959, San Francisco, 12–16 October 1959. American Society Technical Publication 276. ASTM International. p. 64. LCCN60014734. Consultado el 15 de mayo de 2012.
Gupta, S. V. (19 de noviembre de 2009). «Louis Harold Gray». Units of Measurement: Past, Present and Future : International System of Units. Springer. p. 144. ISBN978-3-642-00737-8. Consultado el 14 de mayo de 2012.
Guill, JH; Moteff, John (June 1960). «Dosimetry in Europe and the USSR». Third Pacific Area Meeting Papers — Materials in Nuclear Applications. Symposium on Radiation Effects and Dosimetry - Third Pacific Area Meeting American Society for Testing Materials, October 1959, San Francisco, 12–16 October 1959. American Society Technical Publication 276. ASTM International. p. 64. LCCN60014734. Consultado el 15 de mayo de 2012.