The Notebooks of Leonardo Da Vinci (Volume 1): Leonardo da Vinci, Jean Paul Richter: 0800759225729: Amazon.com: Books
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Leonardo Da Vinci: Walter Isaacson: 9781471166785: Amazon.com: Books
How to Think Like Leonardo da Vinci: Seven Steps to Genius Every Day - Kindle edition by Gelb, Michael J.. Self-Help Kindle eBooks @ Amazon.com.
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File:Leonardo da Vinci helicopter.jpg - Wikipedia
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Leonardo da Vinci's Flying Machine Kit (Dover Science For Kids): Hawcock, David: 0800759836475: Amazon.com: Books
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Book of Flight: From the Flying Machine of Leonardo Da Vinci to the Conquest of Space: Niccoli, Riccardo: 9781586637163: Amazon.com: Books
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Leonardo da Vinci: 9781508241980: Isaacson, Walter, Molina, Alfred: Books - Amazon.com
Journal of Inventions: Leonardo da Vinci: Bark, Jasper: 9781592239085: Amazon.com: Books
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