Gregory , J. N. (1966). The World of radioisotopes. Angus & Robertson.
Cita Chicago (17th ed.)Gregory , J. N. The World of Radioisotopes. Sydney: Angus & Robertson, 1966.
Cita MLA (9th ed.)Gregory , J. N. The World of Radioisotopes. Angus & Robertson, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.