00426nam a2200133 a 450000500170000002000150001708200160003210000180004824500790006626000420014530000250018749000590021270000210027120251203110908.0  a8190095765  a025.42bGOP  aGopinath, M.A  aSubject classification practicebS.R. Ranganathan's postulational approach  aNew DelhibEss Ess Publicationsc2004  avi, 186p.c20 cm. HB  aSarada Ranganathan endowment for libary scinece series  aMangai, Alar Mel