00597nam a22001937a 450000500170000001000150001702000260003203500130005803700130007108200080008410000180009224501180011026000420022827000550027030000220032550000500034770000030039770000030040020100814095637.0  aENG-100444  c695.00a9788173071276  aEN-83977  bDBAD/PUB  a020  aBhatt, R. K.   aInformation systems :bby R. K. Bhattchandbook for beginners in information science and information technology /  aNew DelhibPragati Publicationsc2009  a4382/4B, Ansari Road, DaryaganjbNew Delhie110002  a178 p.c23cm (Hb)  aIncludes bibliographical references and index