000
00267nam a2200121Ia 4500
100
_a
Jain & Gupta
_9
4
942
_c
BK
_s
1
654
_a
technology
245
_a
Production technology
260
_b
Khanna publishers
_a
Delhi
_c
1982
300
_a
1213
546
_a
ENGLISH
999
_c
17757
_d
17757