000 00422cam a22001337a 4500
008 180718b1973 xxu||||| |||| 00| 0 eng d
082 _aI5371 K159
100 _aKatzan, Harry
245 _aComputer data security
_cby Harry Katzan
260 _aNew York
_bVan Nostrand Reinhold
_c1973
300 _aviii, 223p.
650 _aElectronic data processing
650 _aElectronic data processing departments --Security measures
999 _c347605
_d347605