000
00255nam a2200097Ia 4500
008
160930s9999 xx 000 0 und d
100
_a
Gupta, S. L. and V. Kumar
245
_a
Engineering Practical Physics
260
_a
Meerut
_b
Pragati Prakashan
942
_c
BK
999
_c
2697
_d
2697