Comprehensive list of nuclides with a statement of atomic mass, half-life and specific activity /
Dunning, N. J.,author.
Atomic Energy Research Establishment (Harwell, England),issuing body.
Great Britain.Her Majesty's Stationery Office.
"March 23, 1960."
Sold but not published by H.M. Stationery Office.
"Authority Health and Safety Branch."