000 00287nam a2200133 4500
999 _c1621
_d1621
082 _a346.54048
_bPRO
100 _aProfessional
245 _aCopyright act,1957
250 _a1st ed.
260 _aDelhi
_bProfessional
_c2020
300 _aix,139p.
650 _aCopyright law
942 _cR