TY  - BOOK
AU  - Seminar on Tribology in Mine. 1978 (Calcutta)
ED  - Seminar on Tribology in Mine. 1978 (Calcutta)
TI  - Tribology in mines:  Seminar proceedings   
U1  - X9(HZ):8p2,N78, L9 
PY  - 1979///
CY  -  New Delhi 
PB  - National Productivity Council Publication India     
KW  - Minings
ER  -