TY  - BOOK
AU  - Roonwal, G S  .
AU  - Ranjbar,H  .
AU  - Shahriar,K  .
TI  - Mineral resources and development / 
U1  - 553.73 
PY  - 2005///
CY  - Delhi : 
PB  - Daya publishing house , 
ER  -