000 00270 a2200097 4500
001 33562
100 _aPiaggio,H.T.H
245 _aDifferential Equations; theory and applications
260 _aShahdara Delhi
_bCBS Publishers & Dustributors
_c1985
090 _c22332
_d22332
942 _aNUST-CAE
_cM
_c13706
999 _c268635
_d268635