00359nam a2200121 a 450000500170000002000150001708200160003210000280004824500680007626000420014430000220018670000290020820251203110908.0  a8170003520  a025.44bMAH  aMahapatra, Piyush Kanti  aPreservation in librariesbperspectives principles and practice  aNew DelhibEss Ess Publicationsc2003  a261p.c18 cm.cHB  aChakrabarti, Bhubaneswar