Koestler-Grack, R. A. (2006). Leonardo da Vinci: Artist, inventor, and Renaissance man. Chelsea House Publishers.
Cita Chicago Style (17a ed.)Koestler-Grack, Rachel A. Leonardo Da Vinci: Artist, Inventor, and Renaissance Man. Philadelphia: Chelsea House Publishers, 2006.
Cita MLA (8a ed.)Koestler-Grack, Rachel A. Leonardo Da Vinci: Artist, Inventor, and Renaissance Man. Chelsea House Publishers, 2006.
Precaución: Estas citas no son 100% exactas.