000 00344nam a2200133Ia 4500
008 220201s1986 xx 000 0 eng d
041 _aENG
100 _aMICHAEL, A M
245 0 _aDATA BASE SYSTEM CONCEPTS
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1986
300 _a546
700 _aSILBERSCHATZ, ABRAHAM
942 _2ddc
999 _c55063
_d55063