William K. Hartmann
William K. Hartmann has written at least 8 books. Their most popular book is The History of the Earth with 1 save with an average rating of 5⭐.
They are best known for writing in the genres Fiction, Fantasy, and Science fiction.
William K. Hartmann has written at least 8 books. Their most popular book is The History of the Earth with 1 save with an average rating of 5⭐.
They are best known for writing in the genres Fiction, Fantasy, and Science fiction.
 The History of the Earth
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 The Grand Tour
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 Out of the Cradle
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 Mars Underground
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 Moons and Planets
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 Astronomy: The Cosmic Journey
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 A Traveler's Guide to Mars
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 The New Mars The New Mars
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