Oort and the Universe
by Jan Hendrik Oort, Hugo van Woerden, H. C. van de Hulst
CosmogonyCosmologyAstronomersAstronomyBiographyHistory
Writing a summary for young readers…
For young readers
Book data: Open Library
by Jan Hendrik Oort, Hugo van Woerden, H. C. van de Hulst
Book data: Open Library