Frank Lloyd Wright: From Within Outward - Block Plan for Charles E. Roberts, project - FLLW Archive Drawing Number 0309.003: Site Plan (p. 71, fig. 21)

Drawing Citation

Drawing 003 - Site plan, rotated swastika style with central garden, 8 to block
Block Plan for Charles E. Roberts, project (is cited in)
Frank Lloyd Wright: From Within Outward (published in)