Theo van Doesburg. Envisioning Architecture (MoMA, New York, 2002) 1927, 67 Hannes Meyer and Hans Wittwer. Bauhaus 1-2 1927, 5 R.Buckminster Fuller. Envisioning Architecture (MoMA, New York, 2002) 1927, 64 R.Buckminster Fuller. Envisioning Architecture (MoMA, New York, 2002) 1927, 65