Cita APA (7a ed.)
Wright, F. L., & Sergeant, J. Frank Lloyd Wright's Usonian Houses: The Case for Organic Architecture. Whitney Library of Design.
Cita estilo Chicago (17a ed.)
Wright, Frank Lloyd, y John Sergeant. Frank Lloyd Wright's Usonian Houses: The Case for Organic Architecture. Nueva York, EUA: Whitney Library of Design.
Cita MLA (9a ed.)
Wright, Frank Lloyd, y John Sergeant. Frank Lloyd Wright's Usonian Houses: The Case for Organic Architecture. Whitney Library of Design.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.