000 00279nam a2200109Ia 4500
008 230515s9999||||xx |||||||||||||| ||und||
100 _aButler Margaret K.
_942248
245 0 _a1987 National Computer Conference
260 _bAfips Press
_c1987
300 _a827
942 _cBK
_pCL
999 _c154619
_d154619