000			00304nam a22001211a 4500
999			_c156092 _d156092
082			_a160 _bVIR/U
100			_aVirginia Klenk
245			_aUnderstanding symbolic logic/ _cby Virginia Klenk.
260			_aNew Jersey: _bPrentice-Hall, _c1989.
300			_a431p.
650			_aLogic Symbolic
942			_cBK