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61 pages • first pub 1975 (view editions)
ISBN/UID: None
Format: Not specified
Language: English
Publisher: Not specified
Edition Pub Date: Not specified
nonfiction
biography
childrens
adventurous
informative
lighthearted
medium-paced
Description
The brothers study machines, and then after some failures make a flying machine.
Community Reviews
Content Warnings
61 pages • first pub 1975 (view editions)
ISBN/UID: None
Format: Not specified
Language: English
Publisher: Not specified
Edition Pub Date: Not specified
nonfiction
biography
childrens
adventurous
informative
lighthearted
medium-paced
Description
The brothers study machines, and then after some failures make a flying machine.
Community Reviews
Content Warnings