000 00261nam a22001217a 4500
008 181107b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a101
100 _a24
101 _aFIL
245 _aEssentials of Logic
_cManicas,P.T
942 _2udc
_cBK
999 _c52097
_d52097