TY  - BOOK
AU  - Sankar Das, M.
TI  -  Trace analysis and technological development
U1  - 539.17 
PY  - 1960///
CY  - New Delhi
PB  - Wiley Eastern 
KW  - High purity materiala
KW  - nuclear technology
KW  - Life Sciences
KW  - earth sciences
KW  - Indutry
ER  -