TY  - BOOK
AU  - Verma Ajit Ram
TI  - Anmol ratan heera  Ed by Vinita Singhal
SN  - 8172360770
U1  - H191, 152N3 
PY  - 1993///
CY  - Delhi
PB  - CSIR India       
KW  - MINES AND MINERAL RESOURCES
ER  -