TY  - BOOK
ED  - DEPARTMENT OF SCIENTIFIC AND INDUSTRIAL RESEARCH
TI  - Technology in Indian Self Advanceing Roof Support Industry
U1  - x8(d3,6).44 
PY  - 1991///
CY  - NEW DELHI
PB  - MINISTRY OF SCIENCE AND TECHNOLOGY
KW  - INDIAN SELF ADVANCEING ROOF SUPPORT INDUSTRY
ER  -