000
00230nam a2200097Ia 4500
008
170619s9999 xx 000 0 und d
100
_a
GUPTA- SL
245
0
_a
ENGINEERING PRACTICAL PHYSICS
260
_b
Pragati Prakashan
260
_c
2008
546
_a
ENGLISH
999
_c
18796
_d
18796