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15 hours, 37 minutes first pub 1999 (editions)

nonfiction science challenging informative slow-paced
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464 pages first pub 1999 (editions)

nonfiction science challenging informative slow-paced

448 pages first pub 1999 (editions) user-added

nonfiction science challenging informative slow-paced

516 pages first pub 1999 (editions)

nonfiction science challenging informative slow-paced

472 pages first pub 1999 (editions)

nonfiction science challenging informative slow-paced

464 pages first pub 1999 (editions)

nonfiction science challenging informative slow-paced

428 pages first pub 1999 (editions)

nonfiction science challenging informative slow-paced

441 pages first pub 1999 (editions)

nonfiction science challenging informative slow-paced

624 pages first pub 1999 (editions)

nonfiction science challenging informative slow-paced

461 pages first pub 1999 (editions)

nonfiction science challenging informative slow-paced

missing page info first pub 1999 (editions)

nonfiction science challenging informative slow-paced