Παραπομπή σε μορφή APA (7η εκδ.)

Twombly, R. C. (1979). Frank Lloyd Wright, his life and his architecture. Wiley.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Twombly, Robert C. Frank Lloyd Wright, His Life and His Architecture. New York: Wiley, 1979.

Παραπομπή σε μορφή MLA (8th εκδ.)

Twombly, Robert C. Frank Lloyd Wright, His Life and His Architecture. Wiley, 1979.