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1408 pages first pub 1987 (editions)

nonfiction science informative slow-paced
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1328 pages first pub 1987 (editions)

nonfiction science informative slow-paced

1184 pages first pub 1987 (editions)

nonfiction science informative slow-paced

1148 pages first pub 1987 (editions)

nonfiction science informative slow-paced

1120 pages first pub 1987 (editions)

nonfiction science informative slow-paced