APA (7th ed.) Citation

Donnithorne, A. (2019). Leonardo da Vinci: A closer look. Royal Collection Trust.

Chicago Style (17th ed.) Citation

Donnithorne, Alan. Leonardo Da Vinci: A Closer Look. London: Royal Collection Trust, 2019.

MLA (9th ed.) Citation

Donnithorne, Alan. Leonardo Da Vinci: A Closer Look. Royal Collection Trust, 2019.

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