00309nam a2200121 a 450000500170000002000150001708200150003210000220004724500270006926000290009630000200012549000420014520251203110908.0  a8170004950  a025.1bRAN  aRanganathan, S.R.  aLibrary administration  aNew DelhibEss Essc2006  a678p.c22cm. HB  aRanganathan Series in Library Science