00289nam a2200097Ia 4500080001800000100002400018245006400042260003700106300003000143583001800173  a12.04.01 C187  aCampbell, Bonita J.  aUnderstanding information systems : foundations for control  bWinthrop Pub.aCambridgeUSc1977  axviii, 153 p. : ill., map  c3/11/05kJOYD