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72 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced
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224 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

140 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

62 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

88 pages first pub 1919 (editions) user-added

nonfiction autobiography science informative medium-paced

111 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

70 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

110 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

109 pages first pub 1919 (editions) user-added

nonfiction autobiography science informative medium-paced

80 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

82 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced