000 00320nam a2200121Ia 4500
008 220201s1987 xx 000 0 eng d
041 _aENG
100 _aDRURY, JOYLON
245 0 _aTHEORY AND PROBLEMS OF BOOLEAN ALGEBRA
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1987
300 _a213
942 _2ddc
999 _c55051
_d55051