Williamson, Benjamin.
An elementary treatise on the differential calculus, conteining the theory of plene curves, with exam- ples. 3d ed., revised end enlarged.
London: Longmans, Green and co. 1877. xv, 416 DPe Sm. 89, **E.5019.51
Same. 4th ed., revised and enlarged.
London: Longmans, Green and co. 1880. xvi, 440 [442] pp. Sm. 89, **50198.68
-Calculus.Differentiel,. @...... e