000
00334nam a2200157 4500
020
_a
_c
082
_a
535.2 BAL
100
_a
BALAKRISHNAN T K
245
_a
PRAKASIKAM
_h
Malayalam
250
_a
260
_a
Trivandrum
_b
KERALA BHASHA INSTITUTE
_c
1974
300
_a
430 p
_f
PB
650
_a
OPTICS
700
_a
942
_c
TB
999
_c
460166
_d
460166