00330nam a2200121 a 450000500170000002000150001708200160003210000260004824500490007426000420012330000270016570000160019220251203110910.0  a817000022X  a025.52bSHA  aSharma, Jagdish Saran  aReference service and sources of information  aNew DelhibEss Ess Publicationsc1987  aviii, 288p.c22 cm. HB  aGrover, D.R