Cita APA (7th ed.)
(1994). The Sitwells and the arts of the 1920s and 1930s. National portrait Gallery.
Cita Chicago (17th ed.)
The Sitwells and the Arts of the 1920s and 1930s. London: National portrait Gallery, 1994.
Cita MLA (9th ed.)
The Sitwells and the Arts of the 1920s and 1930s. National portrait Gallery, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.