Frank Lloyd Wright Drawings: Masterworks fron the Frank Lloyd Wright Archives - Butterfly Wing Bridge, project - FLLW Archive Drawing Number 4723.001: Regional Development with Highway and Park Systems (p. 256)

Drawing Citation

Drawing 001 - Regional Development with Highway and Park Systems - Perspective, four people at left and two at fro right
Butterfly Wing Bridge, project (is cited in)
Frank Lloyd Wright Drawings: Masterworks fron the Frank Lloyd Wright Archives (published in)