Brauer, H., & Wittkower, R. Bernini's drawings: By Heinrich Brauer and Rudolf Wittkower (Nachdr. d. Ausg. Berlin 1931.). Collectors Ed..
Citazione stile Chigago Style (17a edizione)Brauer, Heinrich, e Rudolf Wittkower. Bernini's Drawings: By Heinrich Brauer and Rudolf Wittkower. Nachdr. d. Ausg. Berlin 1931. New York: Collectors Ed..
Citatione MLA (8a ed.)Brauer, Heinrich, e Rudolf Wittkower. Bernini's Drawings: By Heinrich Brauer and Rudolf Wittkower. Nachdr. d. Ausg. Berlin 1931. Collectors Ed..
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