8 books • 2 series
Master of Galactic Astronomy: A Biography of Jan Hendrik Oort
Pioneer of Galactic Astronomy: A Biography of Jacobus C. Kapteyn
Master of Galactic Astronomy: A Biography of Jan Hendrik Oort (Springer Biographies)
Pioneer of Galactic Astronomy: A Biography of Jacobus C. Kapteyn (Springer Biographies)
Pioneer and Master of Galactic Astronomy: Biographies of Jacobus C. Kapteyn and Jan Hendrik Oort - Set (Springer Biographies)
Jan Hendrik Oort (Astrophysics and Space Science Library, #459)
Jacobus Cornelius Kapteyn (Astrophysics and Space Science Library, #416)
The Milky Way as a Galaxy