APA (7th ed.) Citation

Gronau, G., & Pledge, F. (1903). Leonardo da Vinci. Duckworth; E. P. Dutton.

Chicago Style (17th ed.) Citation

Gronau, Georg, and Frederic Pledge. Leonardo Da Vinci. London : New York: Duckworth; E. P. Dutton, 1903.

MLA (9th ed.) Citation

Gronau, Georg, and Frederic Pledge. Leonardo Da Vinci. Duckworth; E. P. Dutton, 1903.

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