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Current edition

335 pages • first pub 1980 (editions)

nonfiction science informative inspiring reflective medium-paced

335 pages • first pub 1980 (editions)

nonfiction science informative inspiring reflective medium-paced

Other editions (51)

160 pages • first pub 1980 (editions)

nonfiction science informative inspiring reflective medium-paced

160 pages • first pub 1980 (editions)

nonfiction science informative inspiring reflective medium-paced

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