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Billions and Billions: Thoughts on Life and Death at the Brink of the Millennium by Carl Sagan

Billions and Billions: Thoughts on Life and Death at the Brink of the Millennium

Carl Sagan

241 pages • hardcover • 1997

nonfiction philosophy science challenging informative reflective slow-paced
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Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium by Carl Sagan

Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium

Carl Sagan

missing duration info • audio • 1997

nonfiction philosophy science challenging informative reflective slow-paced