000 00222 a2200097 4500
001 30147
100 _aPiaggio, H T H
245 _aDifferential Equations
260 _aLondon
_bG Bell & Sons Ltd
_c
090 _c20090
_d20090
942 _aNUST-CAE
_cM
_c11215
999 _c265220
_d265220