Cita APA (7a ed.)
Wright, F. L., & Pfeiffer, B. B. The Guggenheim Correspondence. Southern Illinois University.
Cita estilo Chicago (17a ed.)
Wright, Frank Lloyd, y Bruce Brooks Pfeiffer. The Guggenheim Correspondence. Carbondale, EUA: Southern Illinois University.
Cita MLA (9a ed.)
Wright, Frank Lloyd, y Bruce Brooks Pfeiffer. The Guggenheim Correspondence. Southern Illinois University.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.