TY  - BOOK
AU  - National coal development corporation ltd.
ED  - National coal development corporation ltd.
TI  - 2nd Annuar report 1957-58
U1  - X9(F551).2.N58 - N57r, J8/GD 
PY  - 1958///
CY  - Ranchi
PB  - National coal development corporation ltd.      
ER  -