00334nam a22001217a 4500003000400000005001700004008004100021040002500062100002100087245006500108260002800173300001100201OSt20260225162052.0260225b        |||||||| |||| 00| 0 eng d  cNVSU Library Bambang  aLangefors, Borje  aTheoretical Analysis of Information SystemscBorje Langefors  aSweden:bS lund,c1970.  a284 p.