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262 pages first pub 1999 (editions)

nonfiction history science technology informative tense slow-paced
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missing duration info first pub 1999 (editions)

nonfiction history science technology informative tense slow-paced

262 pages first pub 1999 (editions)

nonfiction history science technology informative tense slow-paced

missing duration info first pub 1999 (editions)

nonfiction history science technology informative tense slow-paced

262 pages first pub 1999 (editions) user-added

nonfiction history science technology informative tense slow-paced