TY  - BOOK
ED  - Indian Standards Institution                                                                                                                                                                                                                                   . 
TI  - Specification for share for tractor-operated moulboard ploughs, IS 10691-1983 / 
U1  - 631.512 
PY  - 1984///
CY  - New Delhi : 
PB  - Indian Standards Institution , 
ER  -