000
00309nam a2200133Ia 4500
008
210901s1969 xx 000 0 eng d
082
_a
535 EFR
100
_a
Efron, Alexander
245
0
_a
Light
260
_a
Mumbai
_b
Vakils, Feffer and Simons
_c
1969
300
_a
127
650
_a
Physics
942
_2
ddc
_c
BK
999
_c
9041
_d
9041