Contributors:
Henry Kamhoefner, Pietro Belluschi, Paul Buisson, Sherman Pardue, Guilio Pizzetti, Patrick Horsbrugh, Jose de Rivera, Prof. Dr. Ing. Guido Oberti, Prof. Dr. Ing. Arturo Danusso, James M. Fitch, Sylvia Crowe, Auguste Rodin, Norbert Gorwic, Melvin Ravitz, Barclay Jones, Percy Johnson-Marshall, Grady Claw, Thomas Hodne, Norman Klein