000
00284nam a2200133Ia 4500
008
230118s9999||||xx |||||||||||||| ||und||
082
_a
512.943
082
_b
GUP/M
100
_a
r
_b
gupta
245
0
_a
matrices
260
_a
new delhi
260
_b
laxmi publications
260
_c
1989
999
_c
6268
_d
6268