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241 pages first pub 1971 (editions)

nonfiction philosophy science challenging informative reflective slow-paced
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241 pages first pub 1971 (editions)

nonfiction philosophy science challenging informative reflective slow-paced

256 pages first pub 1971 (editions)

nonfiction philosophy science challenging informative reflective slow-paced

230 pages first pub 1971 (editions)

nonfiction philosophy science challenging informative reflective slow-paced

230 pages first pub 1971 (editions)

nonfiction philosophy science challenging informative reflective slow-paced