Charles Z Klauder. Pencil Points 20 January 1939, 31 Arnold Lorenzen. Pencil Points 18 August 1937, 501 Douglas Dacre Stone. Architect and Engineer 138 39 August 1939, 22 Le Corbusier. Envisioning Architecture (MoMA, New York, 2002) 1938, 86 Iakov Chernikhov. Envisioning Architecture (MoMA, New York, 2002) 1933, 79 Miles Sater. Pencil Points 20 January 1939, 30 Herbert Bayer. Envisioning Architecture (MoMA, New York, 2002) 1938, 18 Briggs. Pencil Points 12 January 1931, 54 Le Corbusier. Envisioning Architecture (MoMA, New York, 2002) 1932, 21 Ernest Weihe. Pencil Points 18 June 1937, 388 Le Corbusier. Envisioning Architecture (MoMA, New York, 2002) 1932, 75