000
00228 a2200097 4500
001
3059
100
_a
Boyce, W.E.
245
_a
Elementary diff equt & Boundry value problems
260
_a
_b
Mc Graw hill
_c
090
_c
2344
_d
2344
942
_a
NUST-CAE
_c
M
_c
14936
999
_c
238132
_d
238132