000			00515nam a2200205Ia 4500
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020			_c10
040			_aMAIN
041			_aEnglish
082			_a511.3 _bBAS
100			_aBasson, A. H. and O'Connor, D. J.
245		0	_aIntroduction to symbolic logic
250			_a3rd ed.
260			_aLondon _b; University Tutoral Press _c, 1968
300			_aviii,175p.
650			_aMathematics
650			_aSymbolic Logic
942			_cBK
999			_c112852 _d112852