Wright Studies, Volume Two: Fallingwater and Pittsburgh - Civic Center at Point Park for the Allegheny Conference, project - FLLW Archive Drawing Number 4821.009: Section (p. 88, fig. 6)

Drawing Citation

Drawing 009 - Cross section of something very tall?
Civic Center at Point Park for the Allegheny Conference, project (is cited in)
Wright Studies, Volume Two: Fallingwater and Pittsburgh (published in)