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20 hours, 17 minutes first pub 1974 (editions)

nonfiction memoir science adventurous informative inspiring medium-paced
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missing duration info first pub 1974 (editions)

nonfiction memoir science adventurous informative inspiring medium-paced

481 pages first pub 1974 (editions) user-added

nonfiction memoir science adventurous informative inspiring medium-paced

missing page info missing pub info (editions)

nonfiction memoir science adventurous informative inspiring medium-paced

missing duration info first pub 1974 (editions)

nonfiction memoir science adventurous informative inspiring medium-paced

missing duration info first pub 1974 (editions)

nonfiction memoir science adventurous informative inspiring medium-paced