Frank Lloyd Wright, The Heroic Years 1920 - 1932 - House for Richard Lloyd Jones, scheme 1, project - FLLW Archive Drawing Number 2901.002: Aerial Perspective (p. 186)

Drawing Citation

Drawing 002 - Aerial perspective (triangular scheme, #1)
House for Richard Lloyd Jones, scheme 1, project (is cited in)
Frank Lloyd Wright, The Heroic Years 1920 - 1932 (published in)