TY  - BOOK
AU  - Ahrens,L.H.
TI  - Radioactive methods for determining geological age
T2  - Report on progress in physics
PY  - 1956///
CY  - London - INGL
PB  - 
KW  - Metodos radioactivos
KW  - Edad geologica
KW  - Fisica
KW  - Geologia
ER  -