000
00306nam a2200145Ia 4500
020
_a
0000000000000
082
_b
T-1150
_a
530
100
_a
"PTB"
245
0
_a
Physics
260
_b
PTB
_a
Lahore
_c
1997
300
_a
337
944
_c
TB
999
_c
132522
_d
132522