APA (7th ed.) Zitazioa
Wright, F. L., & Pfeiffer, B. B. The Guggenheim Correspondence. Southern Illinois University.
Chicago Style (17th ed.) Zitazioa
Wright, Frank Lloyd, eta Bruce Brooks Pfeiffer. The Guggenheim Correspondence. Carbondale, EUA: Southern Illinois University.
MLA (9th ed.) Zitazioa
Wright, Frank Lloyd, eta Bruce Brooks Pfeiffer. The Guggenheim Correspondence. Southern Illinois University.
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