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missing duration info first pub 1934 (editions) user-added

nonfiction biography philosophy science challenging informative reflective slow-paced
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192 pages first pub 1934 (editions)

nonfiction biography philosophy science challenging informative reflective slow-paced

125 pages first pub 1934 (editions)

nonfiction biography philosophy science challenging informative reflective slow-paced

108 pages first pub 1934 (editions)

nonfiction biography philosophy science challenging informative reflective slow-paced

704 pages first pub 1934 (editions)

nonfiction biography philosophy science challenging informative reflective slow-paced

48 pages first pub 1934 (editions)

nonfiction biography philosophy science challenging informative reflective slow-paced

308 pages first pub 1934 (editions)

nonfiction biography philosophy science challenging informative reflective slow-paced

146 pages first pub 1934 (editions)

nonfiction biography philosophy science challenging informative reflective slow-paced

128 pages first pub 1934 (editions)

nonfiction biography philosophy science challenging informative reflective slow-paced

80 pages first pub 1934 (editions)

nonfiction biography philosophy science challenging informative reflective slow-paced

160 pages first pub 1934 (editions)

nonfiction biography philosophy science challenging informative reflective slow-paced