000
00261nam a2200097Ia 4500
008
210324s1969 xx 000 0 und d
041
_a
eng
100
_a
Subrahmanyam, N.
_9
1579393
245
_a
Optics a text book of
260
_a
N. Delhi
_b
Niraj, Prakashan
_c
1969
999
_c
1027995
_d
1027995