Metrology needs in the measurement of environmental radioactivity / A seminar sponsored by the international committee for radionuclide metrology in Paris, 4-6 October, 1976 - Oxford: Pergamon Press, 1978 - 116p. ISBN: 0-08-022943-3 Subjects--Topical Terms: Seminar Universal Decimal Class. No.: 551.510.7:531.7/(082.2) / L8