Frank Lloyd Wright, The Heroic Years 1920 - 1932 - Commerical Building in Copper, Concrete, and Glass. Project - FLLW Archive Drawing Number 2307.004: Cross Section Thro' One of Four Main Transverse Units (p. 88)

Drawing Citation

Drawing 004 - Cross Section Thro' One of Four Main Transverse Units - Cross section through one of four main transverse units
Commerical Building in Copper, Concrete, and Glass. Project (is cited in)
Frank Lloyd Wright, The Heroic Years 1920 - 1932 (published in)