English

Authority Sources

http://id.loc.gov/vocabulary/iso639-2/eng

Chapter 24 Problems: Black Holes and Spacetime

Digital Document

Chapter 25 Problems: The Milky Way Galaxy

Digital Document

Chapter 19 Problems: Celestial Distances

Digital Document

Chapter 20 Problems: Between the Stars

Digital Document

Chapter 17 Problems: Analyzing Starlight

Digital Document

Chapter 18 Problems: The Stars

Digital Document

Chapter 26 Problems: Galaxies

Digital Document

Chapter 27 Problems: Active Galaxies, etc.

Digital Document

Chapter 28 Problems: Evolution and Distribution of Galaxies

Digital Document

Chapter 22 Problems: Stars From Adolescence to Old Age

Digital Document