Goldscheider, Ludwig. Leonardo da Vinci : paintings and drawings / Ludwig Goldscheider. - [8th ed.] - London : Phaidon, 1967. - 192 p. : ill. (part col.), plates, (some col.) "With Leonardo biography by Vasari, 1568, ... " ISBN: 0714813125 Subjects--Personal Names: Leonardo, da Vinci, 1452-1519