Books

1. The Depths of Space: The Story of the Pioneer Planetary Probes
   

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2. More Small Astronomical Observatories
   

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3. Astrophysical Concepts (Astronomy and Astrophysics Library)
   

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4. Moon Time : The Art of Harmony with Nature and Lunar Cycles
   

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5. Compendium of Practical Astronomy
   

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Books