000
00261nam a2200097Ia 4500
008
220201s9999 xx 000 0 eng d
100
_a
CODDINGTON (EARL A) & LEVINSON (NORMAN)
245
0
_a
THEORY ORDINARY DIFFERENTAL EQUALITIES
260
_b
T.M.H
942
_2
ddc
999
_c
97445
_d
97445