Feldman, R. (1983). Leonardo: The Silent Language Of Hidden Images and Moving Pictures. Artforum.
Lua i Stíl Chicago (17ú heag.)Feldman, Ronald. "Leonardo: The Silent Language Of Hidden Images and Moving Pictures." Artforum 1983.
Lua MLA (8ú heag.)Feldman, Ronald. "Leonardo: The Silent Language Of Hidden Images and Moving Pictures." Artforum, 1983.
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