00621nam a2200193 a 450000500170000002000150001708200200003210000200005224500540007226000270012630000200015350000540017350000370022750000430026450000430030763000350035063000210038571000210040620251202164127.0  a0717285154  a001.642503bGCS  aRalph H Sprague  aBuilding effective decision support systems 4 vol  aDanburybGrolierc1983  a4v.c22 cm.cHB  aVol 1 Building effective decision support systems  aVol 2 Effective data base design  aVol 3 Basic With Business Applications  aVol 4Information systems through COBOL  aEncyclopedia, Computer science  aComputer science  aCarlson, Eric, D