John D. Fix

• Astronomy
• Astronomy
• Astronomy
• Astronomy
• Astronomy
• Astronomy: Journey to the Cosmic Frontier, Volume 1 (Solar System) with Starry Night Pro 5 DVD, version 5.0 (Astronomy: Journey to the Cosmic Frontier, Volume 1)
• Astronomy: Journey to the Cosmic Frontier, Volume 2 (Stars and Galaxies) with Starry Night Pro 5 DVD, version 5.0 (Astronomy: Journey to the Cosmic Frontier)
• Online Learning Center Password Card to accompany Astronomy
• The structure of circumstellar shells