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62 pages first pub 1919 (editions)

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

nonfiction autobiography science informative medium-paced

52 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

96 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

90 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

100 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

108 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

104 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

84 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

139 pages first pub 1919 (editions)

nonfiction autobiography science informative medium-paced

202 pages first pub 1919 (editions) user-added

nonfiction autobiography science informative medium-paced