Dangos 1 canlyniad

Disgrifiad archifol
Thomas, George, 1806-1868 -- Correspondence Arithmetic -- Early works to 1900 -- Problems, exercises, etc.
Dewisiadau chwilio manwl
Rhagolwg argraffu Gweld:
George Thomas, Swansea: letters, &c.,
George Thomas, Swansea: letters, &c.,