APA (7th ed.) Citation

Castelfranco, G., & Leonardo, d. V. (1968). Drawings by Leonardo da Vinci. Dover Publications.

Chicago Style (17th ed.) Citation

Castelfranco, Giorgio, and da Vinci Leonardo. Drawings by Leonardo Da Vinci. New York: Dover Publications, 1968.

MLA (9th ed.) Citation

Castelfranco, Giorgio, and da Vinci Leonardo. Drawings by Leonardo Da Vinci. Dover Publications, 1968.

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