000			00341nam a2200133Ia 4500
008			180611s9999||||xx |||||||||||||| ||und||
041			_aen
082			_a515.35
100			_aAYRES, Frank .J R.
245		0	_aTheory and Problems of Diffrent Equations
260			_aNew York _bMcGraw Hill book Company _c1972
300			_a294p.
942			_cLL
999			_c22304 _d22304