TY  - BOOK
AU  - Yadav, Rajender Singh
TI  - Rcord of under ground mapping, geology, mode of mineralisation, exploration techniques and microscopic studies of copper deposits at khefri ((madan-kudhan block) distt Jhunjhunu Rajasthan
U1  - 555.44 Y11R 
CY  - Narnaul
PB  - Govt P G College
ER  -