APA (7th ed.) Citation

Ullmann, E. (1980). Leonardo da Vinci. Seemann.

Chicago Style (17th ed.) Citation

Ullmann, Ernst. Leonardo Da Vinci. Leipzig: Seemann, 1980.

MLA (9th ed.) Citation

Ullmann, Ernst. Leonardo Da Vinci. Seemann, 1980.

Warning: These citations may not always be 100% accurate.