000			00302nam a2200133Ia 4500
008			140314s9999 xx 000 0 eng d
082			_a5/2/347
100			_aP. M. Cohn . _911453
245			_aLinear equations \
245			_cP. M. Cohn .
260			_c1991 .
300			_a147 p.
942			_2ddc _cCR
999			_c41397 _d41397