Cita APA (7a ed.)
Wright, F. L., & Pfeiffer, B. B. Letters to Apprentices. California State University.
Cita estilo Chicago (17a ed.)
Wright, Frank Lloyd, y Bruce Brooks Pfeiffer. Letters to Apprentices. Fresno, EUA: California State University.
Cita MLA (9a ed.)
Wright, Frank Lloyd, y Bruce Brooks Pfeiffer. Letters to Apprentices. California State University.
Precaución: Estas citas no son 100% exactas.