Books

1. Oort and the Universe : A Sketch of Oort's Research and Person
   

   ---

2. Neptune: The Eighth Planet (Countdown to Space)
   

   ---

3. La evolución de nuestro universo
   

   ---

4. The Sun in Time (University of Arizona Space Science Series)
   

   ---

5. Giant Planets (Kerrod, Robin. Our Solar System.)
   

   ---

Books