000 00221 a2200097 4500
001 18926
100 _aFoprsyth A R
245 _aTreatise on differential equations
260 _a
_bMacmillan
_c1921
090 _c14014
_d14014
942 _aNUST-CAE
_cM
_c4464
999 _c253999
_d253999