Piaggio, H. T. H.
Elementary treatise on diffrential equations and their applications - 1st ed. - London G. Bell And Sons 1965 - xviii, 256 p. ill.
Differential equations
517.38 / PIA/1965
Elementary treatise on diffrential equations and their applications - 1st ed. - London G. Bell And Sons 1965 - xviii, 256 p. ill.
Differential equations
517.38 / PIA/1965