TY  - BOOK
AU  - Putman,J.L.
TI  - Isotopes
T2  - Pelican books
U1  - 539.74 19
PY  - 1960///[reprinted 1961]
CY  - [Harmondsworth, Eng.]
PB  - Penguin Books
KW  - Radioisotopes
N1  - Bibliography: p. [229]-230
ER  -