Frank Lloyd Wright, The Heroic Years 1920 - 1932 - Oak Park Playground Association, "Kindersymphonies", project - FLLW Archive Drawing Number 2601.006: PLAYHOUSE NO 3 OAK PARK The "BETTY LLOYD" (p. 151)

Drawing Citation

Drawing 006 - PLAYHOUSE NO 3 OAK PARK The "BETTY LLOYD" - Perspective; Design #3, low gable front, high gable to the rear
Oak Park Playground Association, "Kindersymphonies", project (is cited in)
Frank Lloyd Wright, The Heroic Years 1920 - 1932 (published in)