TY  - BOOK
AU  - Extermann R C
TI  - Radioisotopes in scientific research
U1  - 541.388 
PY  - 1958///
CY  - London
PB  - Pergamon pr.
KW  - Isotopes
KW  - Radioisotopes
N1  - Proc. of the international conf.held in Pais in Sept.1957 under the auspices of Unesco
ER  -