000			00355nam a2200133Ia 4500
005			20260205040150.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a517.38 P571E
100			_aPIAGGIO H T H
245		0	_aELEMENTARY TREATISE ON DIFFERENTIAL EQUATIONS AND THEIR APPLICATIONS
260			_aLOND. _bG.BELL _c1952
300			_a256
942			_cBK
999			_c1067 _d1067