Ratzan, Lee <br/><br/>
Understanding information systems:   what they do and why we need them / 
Lee Ratzan 
 - New Delhi  Indiana Publishing House  2009 
 - xv,: 253p. 
<br/><br/>	1 Describing information --2 Representing information 3 Organizing information --4 Retrieving information --5Networking information --6 Securing information --7 Concealing information -- 8 Measuring information --9 Counting information --10 Numbering information --11 Managing information --12 The computer as an information system --13 The Internet as an information system --14 Music as an information system --<br/>Interpreting information :15  numbers as meanings --<br/>16 Counter-intuitive information. 
<br/><br/><label>ISBN: </label>818408238X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GEN
<br/><br/><label>Dewey Class. No.: </label>020  / RAT-U