000
00261nam a2200121 a 4500
003
EIA
001
5887
942
_0
2
_2
ddc
_c
BK
245
_a
Differential equations
260
_c
c1960
008
141112s1960 ck r 000 u spa d
082
_a
515.35
_b
A35d
_c
2ed
999
_c
3294
_d
3294