000
00280nam a2200109Ia 4500
008
230222s9999 xx 000 0 und d
100
_a
Khanna O P
245
2
_a
A T.B. of Material Sceince and Metullargy
250
_a
1
260
_b
Dhanpat Rai & Co.,New Delhi
_c
2011
942
_c
BK
999
_c
31628
_d
31628