TY  - BOOK
AU  - Singh,B.
ED  - International Symposium on Underground Engineering
ED  - Central Mining Research Station (Dhanbad, India)
TI  - International Symposium on Underground Engineering, 14-17 April, 1988, New Delhi, India: proceedings 
SN  - 8120403037  (v. 1)
PY  - 1988///
CY  - New Delhi
PB  - Oxford & IBH Pub. Co.
KW  - Underground construction
KW  - Underground areas
ER  -