Willetts, W. (1981). Chinese calligraphy: Its history and aesthetic motivation. Oxford University Press.
Citace podle Chicago (17th ed.)Willetts, William. Chinese Calligraphy: Its History and Aesthetic Motivation. Hongkong: Oxford University Press, 1981.
Citace podle MLA (9th ed.)Willetts, William. Chinese Calligraphy: Its History and Aesthetic Motivation. Oxford University Press, 1981.
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