Zettl, W. (1967). Stefania Bragaglia Guidi. Galerie Welz <Salzburg>.
Cita Chicago (17th ed.)Zettl, Walter. Stefania Bragaglia Guidi. Salzburg: Galerie Welz <Salzburg>, 1967.
Cita MLA (8th ed.)Zettl, Walter. Stefania Bragaglia Guidi. Galerie Welz <Salzburg>, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.