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missing duration info first pub 1999 (editions)

nonfiction biography science informative lighthearted slow-paced
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missing page info first pub 1999 (editions)

nonfiction biography science informative lighthearted slow-paced

270 pages first pub 1999 (editions)

nonfiction biography science informative lighthearted slow-paced

308 pages first pub 1999 (editions)

nonfiction biography science informative lighthearted slow-paced