Ioannis Kepleris ... Strena, seu, De niue sexangula

Kepler, Johannes, 1571-1630 · 1611 · Francofvrti ad Moenvm : Apud Godefridum Tampach · 1 picture

Hexagons · Geometry

Internet Archive · Fisher - University of Toronto · Public domain (published before 1931) · More from this library