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Incoming Resources
- Luna, the science and stories of our moon, David A. Aguilar
- Space encyclopedia, a tour of our solar system and beyond, written and illustrated by David A. Aguilar
- 11 planets, a new view of the solar system, David A. Aguilar
- Planets, stars, and galaxies, a visual encyclopedia of our universe, written and illustrated by David A. Aguilar ; contributing writers Christine Pulliam & Patricia Daniels ; [foreword by Dennis A. Tito]