000 00281nam a2200121Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _aSTE;M
100 _aStebbing, L S
245 0 _aModern Elementry Logic
260 _aLondon
_bMethuen
_c1971
942 _cGB
999 _c22902
_d22902