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363 pages first pub 1995 (editions)

nonfiction reference science informative medium-paced
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320 pages first pub 1995 (editions)

nonfiction reference science informative medium-paced

320 pages first pub 1995 (editions)

nonfiction reference science informative medium-paced

528 pages first pub 1995 (editions)

nonfiction reference science challenging informative medium-paced

292 pages first pub 1995 (editions)

nonfiction reference science informative medium-paced