000			003770000a22001330004500
080			_a517.9 _bP5
100			_aPiaggio, H.T.H.
245			_aAn Elementary treatise on differential equations : and their applications
250			_aNew rev. ed.
260			_aLondon _bG.Bell & Sons _c1933
300			_axviii, 256, xxviip. : ill.
650			_aDIFFERENTIAL EQUATIONS
942			_cBK
999			_c51557 _d51557