00527nam a22002057a 450000500170000001000110001702000100002803500110003803700160004904000120006508200150007710000180009224500540011026000340016427000140019830000250021250000500023765000130028765000210030020170124110001.0  a388959  c00.00  a388959  bCen Lib/Ret  aDPLbEN  a368.4bMAM  aMamoria, C.B.  aPrinciples of social security /cby C.B. Mamoria   aNew DelhibKitab Mahal c1965  bNew Delhi  axiv, 366p.c21cm(Hb)  aIncludes bibliographical references and index  aCommerce  aSocial security