The Notebooks of Leonardo Da Vinci - Volume 2
Leonardo da Vinci, 1452-1519
The Notebooks of Leonardo Da Vinci - Volume 2 [electronic resource] / Leonardo da Vinci - Project Gutenberg, 2004 - Project Gutenberg 4999 .
Public domain in the USA.
Electronic text
Leonardo, da Vinci, 1452-1519 -- Notebooks, sketchbooks, etc.
ND
The Notebooks of Leonardo Da Vinci - Volume 2 [electronic resource] / Leonardo da Vinci - Project Gutenberg, 2004 - Project Gutenberg 4999 .
Public domain in the USA.
Electronic text
Leonardo, da Vinci, 1452-1519 -- Notebooks, sketchbooks, etc.
ND