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Osvald Sirén Léonard de Vinci: L'artiste et l'homme: Edition entièrement refondue et mis à jour.. 3 vols., Paris and Brussels, 1928, fig. no. pl. 54, p. 41, ill.
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Wilhelm Suida Leonardo und sein Kreis. Munich, 1929, fig. no. pl. 49, pp. 51, 270, ill.
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Heinrich Bodmer "Leonardo: Des Meisters Gemälde und Zeichnungen." Klassiker der Kunst in Gesamtausgaben. 37, Stuttgart and Berlin, 1931, pp. 149, 386, ill.
Woldemar von Seidlitz Leonardo da Vinci: Der Wendepunkt der Renaissance. Revised edition. Vienna, 1935, fig. no. pl. 54, ill.
Bernard Berenson The Drawings of the Florentine Painters. 3 vols, amplified edition. Chicago, 1938, vol. I, pp. 171-72 n. 1; vol. II, p. 116, cat. no. III, 1049 C, fig. no. III, fig. 484, pp. I-171-72,II-, ill.
Sir Kenneth Clark Leonardo da Vinci: An Account of His Development as an Artist. 2nd editon 1952. Cambridge, 1939, fig. no. pl. 20, p. 42, ill.
Italian Drawings Exh. cat., Northampton, Massachusetts, Tryon Art Gallery, Smith College Museum of Art. Tryon Art Gallery, Smith College Museum of Art, Northampton, Massachusetts, 1941, fig. no. 35.
Walter Mehring "European Drawings from the Collections of The Metropolitan Museum of Art" (Portfolio of Collotype Reproductions) 3 Vols: [1: Italian Drawings; 2: Flemish, Dutch, German, Spanish, French, and British drawings; 3: This volume is titled "New Series"(N.S.): Italian, Flemish, Dutch, German, Spanish, French, and British drawings]. The Metropolitan Museum of Art, 3 Vols., New York, 1942-1944, also in N.S., no. 2., cat. no. Vol.1, no. 8., fig. no. 8, ill.
Ludwig Goldscheider Leonardo da Vinci. London and New York, 1943, cat. no. 81.
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Hans Tietze European Master Drawings in the United States. J. J. Augustin, New York, 1947, cat. no. 21, fig. no. 159, pp. 42-43, ill.
A. E. Popham Drawings of Leonardo da Vinci. London, 1949, fig. no. pl. 159, pp. 69-70, 149, ill.
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Bernard Berenson, Luisa Vertova I disegni dei pittori fiorentini. 3 vols., Revised and enlarged. Milan, 1961, cat. no. III, no. 1049C, fig. no. III, fig. 475, pp. I-251-52, II, ill.
Winslow Ames Great Drawings of All Time. Volume I: Italian, Thirteenth through Nineteenth Century. Edited by Ira Moskowitz, 1, New York, 1962, cat. no. 153, ill.
Charles De Tolnay "Quelques dessins inédits de Léonard de Vinci" Raccolta Vinciana. 19 (1962), Milan, 1962, fig. no. 13, pp. 110-11, ill.
Italian Drawings from the Fifteenth to the Eighteenth Century. London, 1963, cat. no. 153.
Jacob Bean 100 European Drawings in the Metropolitan Museum of Art. The Metropolitan Museum of Art, New York Graphic Society, New York, 1964, cat. no. no. 3, ill.
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Giorgio Castelfranco Studi vinciani. Rome, 1966, fig. no. 23, 24, pp. 203, 212.
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B. Bacall A Catalogue of the Drawings of Leonardo da Vinci and his School in the United States of America M.A. thesis, directed by Carlo Pedretti. Master's thesis, 1968 cat. no. 3.
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Carlo Pedretti Leonardo da Vinci: Studies for a Nativity and the 'Mona Lisa Cartoon' with Drawings after Leonardo from the Elmer Belt Library of Vinciana Exh. cat., in Honor of Elmer Belt, M. D. on the Occasion of His Eightieth Birthday, University of California, Los Angeles. Los Angeles, University of California, 1973, fig. no. 4, pp. 13-17, 31-34, ill.
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Carlo Pedretti The Literary Works of Leonardo da Vinci. Compiled and Edited from the Original Manuscripts by Jean Paul Richter Commentary. 2 vols., Berkely and Los Angeles, 1977, vol. I, p. 378.
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Pietro C. Marani Leonardo da Vinci: The Complete Paintings With an appendix of documents transcribed by Edoardo Villata. New York, 2000, pp. 79-83.
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Gigetta Dalli Regioli, Romano Nanni, Antonio Natali Leonardo e il mito di Leda: Modelli, memorie e metamorfosi di un'invenzione Exh. cat., Vinci, Palazzina Uzielli del Museo Leonardiano. Cinisello Balsamo, 2001, fig. no. 13, pp. 19-20, ill.
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