Cita APA (7a ed.)

Sommer, R. L. (1993). Frank Lloyd Wright: American architect for the twentieth century. Smithmark.

Cita Chicago Style (17a ed.)

Sommer, Robin Langley. Frank Lloyd Wright: American Architect for the Twentieth Century. New York: Smithmark, 1993.

Cita MLA (9a ed.)

Sommer, Robin Langley. Frank Lloyd Wright: American Architect for the Twentieth Century. Smithmark, 1993.