Clark, K. (1968). The drawing of the Leonardo Da Vinci in the collection of Her mejesty the queen at windor castle (2nd.). Phaidon.
শিকাগো স্টাইলে সাইটেশনClark, Kenneth. The Drawing of the Leonardo Da Vinci in the Collection of Her Mejesty the Queen at Windor Castle. 2nd. New york: Phaidon, 1968.
এমএলএ সাইটেশনClark, Kenneth. The Drawing of the Leonardo Da Vinci in the Collection of Her Mejesty the Queen at Windor Castle. 2nd. Phaidon, 1968.
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