00278nam a2200109 a 450000500170000000800410001704100080005810000170006624500390008326400380012230000080016020260717100943.0260717s2001    ii            000 0 eng d  aeng1 aGupta, S. L.10aClassical mechanics /cGupta, S.L. 1aNew Delhi :bPrentic Hall,c2001.  a440