TY  - BOOK
AU  - Kumardas, Vg
TI  - Main group elements and their compounds: Pers[ectoves om ,ateroa;s scoemce. che,ostry and biology 
SN  - 8173190712
PY  - 1996///
CY  - New Delhi
PB  - Narosa, New delhi,1996,
ER  -