000
00237nam a2200097Ia 4500
008
230401s9999 xx 000 0 eng d
100
_a
GILL(PS)
245
0
_a
MATERIAL SCIENCE ENG.
260
_b
KATARIA & SONS ( DELHI )
942
_2
ddc
_c
MBA
999
_c
11623
_d
11623