000
00266nam a2200109Ia 4500
008
220201s9999 xx 000 0 eng d
100
_a
GAUR (RK) & GUPTA (SL)
245
0
_a
ENGINEERING PHYSICS.
250
_a
8TH
260
_b
DHANPAT RAI PUB. N. DELHI
942
_2
ddc
999
_c
98779
_d
98779