000
002260000a22001090004500
245
_a
Machine drawing
100
_a
Nagpal, G.R.
260
_a
Delihi
_b
Khanna
_c
1978
080
_a
621.7:744
_b
N3
041
_a
EN
942
_c
BK
999
_c
112547
_d
112547