Biblio
1907
An Episode in Flatland: or How a Plane Folk Discovered the Third Dimension. To Which Is Added A Outline of the History of UNÆA. London: Swan Sonnenschein, 1907.
An Episode in Flatland: or How a Plane Folk Discovered the Third Dimension. To Which Is Added A Outline of the History of UNÆA. London: Swan Sonnenschein, 1907.