000			00323nam a2200133Ia 4500
008			230312s9999||||xx |||||||||||||| ||und||
082			_a517.38 _bboy
100			_aboyee
245		0	_aElementrary differential Equations and boundary
260			_binternational _c2013
300			_a796
650			_aEngineering
942			_cBK
999			_c6181 _d6181