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Current edition

544 pages • first pub 1976 (editions)

nonfiction science informative reflective slow-paced

544 pages • first pub 1976 (editions)

nonfiction science informative reflective slow-paced

Other editions (1)

180 pages • first pub 1976 (editions)

nonfiction science informative reflective slow-paced

180 pages • first pub 1976 (editions)

nonfiction science informative reflective slow-paced

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