Hannes Meyer and Hans Wittwer. Bauhaus 1-2 1927, 5 Louis Bourgeois. Architectural Record 47 20 June 1920, 504 R.Buckminster Fuller. Envisioning Architecture (MoMA, New York, 2002) 1927, 65 R.Buckminster Fuller. Envisioning Architecture (MoMA, New York, 2002) 1927, 64 Augusto Guidini. Arquitectura. v.6 n.36 1920, 11 Theo van Doesburg. Envisioning Architecture (MoMA, New York, 2002) 1927, 67 Frank Lloyd Wright, Heinrich Klumb, Takehiko Okami. Envisioning Architecture (MoMA, New York, 2002) 1929, 43 Ludwig Hilberseimer. Bauhaus 4-1 1929, 3 Augusto Guidini. Arquitectura. v.6 n.36 1920, 7