Clark, K. (1959). Leonardo da Vinci: An account of his development as an artist (1a. ed.). Penguin Books.
Цитирование в стиле Чикаго (17-е изд.)Clark, Kenneth. Leonardo Da Vinci: An Account of His Development as an Artist. 1a. ed. Londres: Penguin Books, 1959.
Цитирование MLA (9-е изд.)Clark, Kenneth. Leonardo Da Vinci: An Account of His Development as an Artist. 1a. ed. Penguin Books, 1959.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.