TY  - BOOK
AU  - SHARMA PRTVTRA
TI  - DRAVYAGUNA VIJNAN 
SN  - 0
U1  - 615.537 SHA 
PY  - 1990///
CY  - VARANSI
PB  - CHAUKHAMBA SURBHARATI PRAKASHAN
KW  - DRAVYAGUNA VIJNAN
ER  -